20750316 has 12 divisors (see below), whose sum is σ = 48417432. Its totient is φ = 6916768.

The previous prime is 20750287. The next prime is 20750321. The reversal of 20750316 is 61305702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20750316² = 861151228199712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864585 + ... + 864608.

It is an arithmetic number, because the mean of its divisors is an integer number (4034786).

Almost surely, 2^20750316 is an apocalyptic number.

It is an amenable number.

20750316 is an abundant number, since it is smaller than the sum of its proper divisors (27667116).

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

20750316 is a wasteful number, since it uses less digits than its factorization.

20750316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729200 (or 1729198 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 20750316 is about 4555.2514749463. The cubic root of 20750316 is about 274.7946279320.

The spelling of 20750316 in words is "twenty million, seven hundred fifty thousand, three hundred sixteen".