64401045 has 32 divisors (see below), whose sum is σ = 106057728. Its totient is φ = 33354048.

The previous prime is 64401031. The next prime is 64401079. The reversal of 64401045 is 54010446.

It is not a de Polignac number, because 64401045 - 2⁸ = 64400789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117462 + ... + 118008.

It is an arithmetic number, because the mean of its divisors is an integer number (3314304).

Almost surely, 2^64401045 is an apocalyptic number.

It is an amenable number.

64401045 is a deficient number, since it is larger than the sum of its proper divisors (41656683).

64401045 is a wasteful number, since it uses less digits than its factorization.

64401045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 64401045 is about 8025.0261681816. The cubic root of 64401045 is about 400.8337712728.

The spelling of 64401045 in words is "sixty-four million, four hundred one thousand, forty-five".