64630454 has 8 divisors (see below), whose sum is σ = 110795088. Its totient is φ = 27698760.

The previous prime is 64630451. The next prime is 64630459. The reversal of 64630454 is 45403646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64630454² = 8354191168492232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64630454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64630451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2308217 + ... + 2308244.

It is an arithmetic number, because the mean of its divisors is an integer number (13849386).

Almost surely, 2^64630454 is an apocalyptic number.

64630454 is a deficient number, since it is larger than the sum of its proper divisors (46164634).

64630454 is a wasteful number, since it uses less digits than its factorization.

64630454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616470.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 64630454 is about 8039.3068109135. The cubic root of 64630454 is about 401.3091564324.

The spelling of 64630454 in words is "sixty-four million, six hundred thirty thousand, four hundred fifty-four".