68492970 has 96 divisors (see below), whose sum is σ = 219203712. Its totient is φ = 14449536.

The previous prime is 68492939. The next prime is 68492971. The reversal of 68492970 is 7929486.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (68492971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4009 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (2283372).

Almost surely, 2^68492970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68492970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109601856).

68492970 is an abundant number, since it is smaller than the sum of its proper divisors (150710742).

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

68492970 is a wasteful number, since it uses less digits than its factorization.

68492970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8396 (or 8393 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 68492970 is about 8276.0479698948. The cubic root of 68492970 is about 409.1494761940.

The spelling of 68492970 in words is "sixty-eight million, four hundred ninety-two thousand, nine hundred seventy".