64450630 has 32 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 25082880.

The previous prime is 64450609. The next prime is 64450637. The reversal of 64450630 is 3605446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64450637) 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, 112986 + ... + 113554.

It is an arithmetic number, because the mean of its divisors is an integer number (3724380).

Almost surely, 2^64450630 is an apocalyptic number.

64450630 is a deficient number, since it is larger than the sum of its proper divisors (54729530).

64450630 is a wasteful number, since it uses less digits than its factorization.

64450630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 64450630 is about 8028.1149717726. The cubic root of 64450630 is about 400.9366176566.

It can be divided in two parts, 6 and 4450630, that added together give a triangular number (4450636 = T₂₉₈₃).

The spelling of 64450630 in words is "sixty-four million, four hundred fifty thousand, six hundred thirty".