1163931426 has 24 divisors (see below), whose sum is σ = 2882116224. Its totient is φ = 332551800.

The previous prime is 1163931407. The next prime is 1163931449. The reversal of 1163931426 is 6241393611.

1163931426 is a `hidden beast` number, since 1 + 1 + 639 + 3 + 14 + 2 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4618650 + ... + 4618901.

It is an arithmetic number, because the mean of its divisors is an integer number (120088176).

Almost surely, 2^1163931426 is an apocalyptic number.

1163931426 is an abundant number, since it is smaller than the sum of its proper divisors (1718184798).

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

1163931426 is a wasteful number, since it uses less digits than its factorization.

1163931426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237566 (or 9237563 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1163931426 is about 34116.4392338943. The cubic root of 1163931426 is about 1051.9032528001.

The spelling of 1163931426 in words is "one billion, one hundred sixty-three million, nine hundred thirty-one thousand, four hundred twenty-six".