1113204438 has 32 divisors (see below), whose sum is σ = 2619306720. Its totient is φ = 349240320.

The previous prime is 1113204431. The next prime is 1113204457. The reversal of 1113204438 is 8344023111.

1113204438 is a `hidden beast` number, since 11 + 13 + 204 + 438 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113204431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605403 + ... + 607238.

It is an arithmetic number, because the mean of its divisors is an integer number (81853335).

Almost surely, 2^1113204438 is an apocalyptic number.

1113204438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1113204438 is an abundant number, since it is smaller than the sum of its proper divisors (1506102282).

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

1113204438 is a wasteful number, since it uses less digits than its factorization.

1113204438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212669 (or 1212663 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1113204438 is about 33364.7184612728. The cubic root of 1113204438 is about 1036.3942059354.

Adding to 1113204438 its reverse (8344023111), we get a palindrome (9457227549).

The spelling of 1113204438 in words is "one billion, one hundred thirteen million, two hundred four thousand, four hundred thirty-eight".