20627464 has 96 divisors (see below), whose sum is σ = 48751200. Its totient is φ = 8087040.

The previous prime is 20627449. The next prime is 20627471. The reversal of 20627464 is 46472602.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282532 + ... + 282604.

It is an arithmetic number, because the mean of its divisors is an integer number (507825).

Almost surely, 2^20627464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20627464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24375600).

20627464 is an abundant number, since it is smaller than the sum of its proper divisors (28123736).

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

20627464 is a wasteful number, since it uses less digits than its factorization.

20627464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 20627464 is about 4541.7468005163. The cubic root of 20627464 is about 274.2512480460.

The spelling of 20627464 in words is "twenty million, six hundred twenty-seven thousand, four hundred sixty-four".