20465376 has 24 divisors (see below), whose sum is σ = 53721864. Its totient is φ = 6821760.

The previous prime is 20465369. The next prime is 20465407. The reversal of 20465376 is 67356402.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×20465376² = 837663229642752, which contains 22 as substring.

It is a congruent number.

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, 106495 + ... + 106686.

It is an arithmetic number, because the mean of its divisors is an integer number (2238411).

Almost surely, 2^20465376 is an apocalyptic number.

It is an amenable number.

20465376 is an abundant number, since it is smaller than the sum of its proper divisors (33256488).

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

20465376 is a wasteful number, since it uses less digits than its factorization.

20465376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213194 (or 213186 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 20465376 is about 4523.8673720612. The cubic root of 20465376 is about 273.5310143779.

The spelling of 20465376 in words is "twenty million, four hundred sixty-five thousand, three hundred seventy-six".