68015464 has 16 divisors (see below), whose sum is σ = 139122720. Its totient is φ = 30916080.

The previous prime is 68015461. The next prime is 68015477. The reversal of 68015464 is 46451086.

It is a super-2 number, since 2×68015464² = 9252206686270592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68015461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386364 + ... + 386539.

It is an arithmetic number, because the mean of its divisors is an integer number (8695170).

Almost surely, 2^68015464 is an apocalyptic number.

It is an amenable number.

68015464 is an abundant number, since it is smaller than the sum of its proper divisors (71107256).

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

68015464 is a wasteful number, since it uses less digits than its factorization.

68015464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772920 (or 772916 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 68015464 is about 8247.1488406600. The cubic root of 68015464 is about 408.1964483929.

The spelling of 68015464 in words is "sixty-eight million, fifteen thousand, four hundred sixty-four".