68840562 has 16 divisors (see below), whose sum is σ = 157349952. Its totient is φ = 19668720.

The previous prime is 68840561. The next prime is 68840567. The reversal of 68840562 is 26504886.

It is a self number, because there is not a number n which added to its sum of digits gives 68840562.

It is not an unprimeable number, because it can be changed into a prime (68840561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819489 + ... + 819572.

It is an arithmetic number, because the mean of its divisors is an integer number (9834372).

Almost surely, 2^68840562 is an apocalyptic number.

68840562 is an abundant number, since it is smaller than the sum of its proper divisors (88509390).

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

68840562 is a wasteful number, since it uses less digits than its factorization.

68840562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639073.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 68840562 is about 8297.0212727219. The cubic root of 68840562 is about 409.8404336437.

The spelling of 68840562 in words is "sixty-eight million, eight hundred forty thousand, five hundred sixty-two".