1103264140 has 48 divisors (see below), whose sum is σ = 2539563264. Its totient is φ = 399268800.

The previous prime is 1103264119. The next prime is 1103264171. The reversal of 1103264140 is 414623011.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34537 + ... + 58303.

It is an arithmetic number, because the mean of its divisors is an integer number (52907568).

Almost surely, 2^1103264140 is an apocalyptic number.

1103264140 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 1103264140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269781632).

1103264140 is an abundant number, since it is smaller than the sum of its proper divisors (1436299124).

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

1103264140 is a wasteful number, since it uses less digits than its factorization.

1103264140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998 (or 23996 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1103264140 is about 33215.4202141114. The cubic root of 1103264140 is about 1033.3001698225.

Adding to 1103264140 its reverse (414623011), we get a palindrome (1517887151).

The spelling of 1103264140 in words is "one billion, one hundred three million, two hundred sixty-four thousand, one hundred forty".