1068156456 has 32 divisors (see below), whose sum is σ = 2694029760. Its totient is φ = 352900352.

The previous prime is 1068156443. The next prime is 1068156493. The reversal of 1068156456 is 6546518601.

It is a super-2 number, since 2×1068156456² = 2281916428988959872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194220 + ... + 199643.

It is an arithmetic number, because the mean of its divisors is an integer number (84188430).

Almost surely, 2^1068156456 is an apocalyptic number.

It is an amenable number.

1068156456 is an abundant number, since it is smaller than the sum of its proper divisors (1625873304).

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

1068156456 is a wasteful number, since it uses less digits than its factorization.

1068156456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393985 (or 393981 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 1068156456 is about 32682.6629270015. The cubic root of 1068156456 is about 1022.2213717454.

The spelling of 1068156456 in words is "one billion, sixty-eight million, one hundred fifty-six thousand, four hundred fifty-six".