20151344 has 40 divisors (see below), whose sum is σ = 40378368. Its totient is φ = 9737280.

The previous prime is 20151319. The next prime is 20151349. The reversal of 20151344 is 44315102.

It is not an unprimeable number, because it can be changed into a prime (20151349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95399 + ... + 95609.

Almost surely, 2^20151344 is an apocalyptic number.

It is an amenable number.

20151344 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20151344 is a wasteful number, since it uses less digits than its factorization.

20151344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20151344 is about 4489.0248384254. The cubic root of 20151344 is about 272.1247265345.

Adding to 20151344 its reverse (44315102), we get a palindrome (64466446).

The spelling of 20151344 in words is "twenty million, one hundred fifty-one thousand, three hundred forty-four".