1103146440 has 64 divisors (see below), whose sum is σ = 3610301760. Its totient is φ = 267429120.

The previous prime is 1103146409. The next prime is 1103146469. The reversal of 1103146440 is 446413011.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1103146440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416539 + ... + 419178.

It is an arithmetic number, because the mean of its divisors is an integer number (56410965).

Almost surely, 2^1103146440 is an apocalyptic number.

1103146440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103146440 is an abundant number, since it is smaller than the sum of its proper divisors (2507155320).

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

1103146440 is a wasteful number, since it uses less digits than its factorization.

1103146440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835742 (or 835738 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1103146440 is about 33213.6483994156. The cubic root of 1103146440 is about 1033.2634231811.

Adding to 1103146440 its reverse (446413011), we get a palindrome (1549559451).

The spelling of 1103146440 in words is "one billion, one hundred three million, one hundred forty-six thousand, four hundred forty".