64067490 has 32 divisors (see below), whose sum is σ = 170847360. Its totient is φ = 17084592.

The previous prime is 64067459. The next prime is 64067491. The reversal of 64067490 is 9476046.

64067490 is a `hidden beast` number, since 640 + 6 + 7 + 4 + 9 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (64067491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118374 + ... + 118913.

It is an arithmetic number, because the mean of its divisors is an integer number (5338980).

Almost surely, 2^64067490 is an apocalyptic number.

64067490 is an abundant number, since it is smaller than the sum of its proper divisors (106779870).

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

64067490 is a wasteful number, since it uses less digits than its factorization.

64067490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237303 (or 237297 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 64067490 is about 8004.2170135498. The cubic root of 64067490 is about 400.1405547718.

The spelling of 64067490 in words is "sixty-four million, sixty-seven thousand, four hundred ninety".