1103398740 has 96 divisors (see below), whose sum is σ = 3466955520. Its totient is φ = 291312000.

The previous prime is 1103398739. The next prime is 1103398741. The reversal of 1103398740 is 478933011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1103398739) and next prime (1103398741).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1103398695 and 1103398704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103398741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44425 + ... + 64655.

It is an arithmetic number, because the mean of its divisors is an integer number (36114120).

Almost surely, 2^1103398740 is an apocalyptic number.

1103398740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103398740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733477760).

1103398740 is an abundant number, since it is smaller than the sum of its proper divisors (2363556780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103398740 is a wasteful number, since it uses less digits than its factorization.

1103398740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20350 (or 20342 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1103398740 is about 33217.4463196676. The cubic root of 1103398740 is about 1033.3421895414.

The spelling of 1103398740 in words is "one billion, one hundred three million, three hundred ninety-eight thousand, seven hundred forty".