64770450 has 24 divisors (see below), whose sum is σ = 160631088. Its totient is φ = 17272080.

The previous prime is 64770413. The next prime is 64770451. The reversal of 64770450 is 5407746.

64770450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64770450² = 8390422386405000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64770451) 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 11 ways as a sum of consecutive naturals, for example, 215752 + ... + 216051.

It is an arithmetic number, because the mean of its divisors is an integer number (6692962).

Almost surely, 2^64770450 is an apocalyptic number.

64770450 is an abundant number, since it is smaller than the sum of its proper divisors (95860638).

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

64770450 is a wasteful number, since it uses less digits than its factorization.

64770450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431818 (or 431813 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 64770450 is about 8048.0090705714. The cubic root of 64770450 is about 401.5987060018.

The spelling of 64770450 in words is "sixty-four million, seven hundred seventy thousand, four hundred fifty".