67906464 has 24 divisors (see below), whose sum is σ = 178254720. Its totient is φ = 22635456.

The previous prime is 67906457. The next prime is 67906469. The reversal of 67906464 is 46460976.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×67906464² = 9222575705966592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67906469) 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, 353584 + ... + 353775.

It is an arithmetic number, because the mean of its divisors is an integer number (7427280).

Almost surely, 2^67906464 is an apocalyptic number.

It is an amenable number.

67906464 is an abundant number, since it is smaller than the sum of its proper divisors (110348256).

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

67906464 is a wasteful number, since it uses less digits than its factorization.

67906464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707372 (or 707364 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 67906464 is about 8240.5378465243. The cubic root of 67906464 is about 407.9782764289.

It can be divided in two parts, 67 and 906464, that added together give a triangular number (906531 = T₁₃₄₆).

The spelling of 67906464 in words is "sixty-seven million, nine hundred six thousand, four hundred sixty-four".