64042758 has 32 divisors (see below), whose sum is σ = 153266400. Its totient is φ = 19705248.

The previous prime is 64042751. The next prime is 64042763. The reversal of 64042758 is 85724046.

64042758 is a `hidden beast` number, since 640 + 4 + 2 + 7 + 5 + 8 = 666.

64042758 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44913 + ... + 46316.

It is an arithmetic number, because the mean of its divisors is an integer number (4789575).

Almost surely, 2^64042758 is an apocalyptic number.

64042758 is an abundant number, since it is smaller than the sum of its proper divisors (89223642).

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

64042758 is a wasteful number, since it uses less digits than its factorization.

64042758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91253 (or 91247 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 64042758 is about 8002.6719287998. The cubic root of 64042758 is about 400.0890593363.

The spelling of 64042758 in words is "sixty-four million, forty-two thousand, seven hundred fifty-eight".