1068978590 has 16 divisors (see below), whose sum is σ = 2007821088. Its totient is φ = 409000416.

The previous prime is 1068978577. The next prime is 1068978637. The reversal of 1068978590 is 958798601.

It is a super-2 number, since 2×1068978590² = 2285430451756776200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 2323637 + ... + 2324096.

It is an arithmetic number, because the mean of its divisors is an integer number (125488818).

Almost surely, 2^1068978590 is an apocalyptic number.

1068978590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1068978590 is a deficient number, since it is larger than the sum of its proper divisors (938842498).

1068978590 is a wasteful number, since it uses less digits than its factorization.

1068978590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647763.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 1068978590 is about 32695.2380324719. The cubic root of 1068978590 is about 1022.4835641175.

The spelling of 1068978590 in words is "one billion, sixty-eight million, nine hundred seventy-eight thousand, five hundred ninety".