20465896 has 16 divisors (see below), whose sum is σ = 41862240. Its totient is φ = 9302640.

The previous prime is 20465873. The next prime is 20465899. The reversal of 20465896 is 69856402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20465899) 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, 116196 + ... + 116371.

It is an arithmetic number, because the mean of its divisors is an integer number (2616390).

Almost surely, 2^20465896 is an apocalyptic number.

It is an amenable number.

20465896 is an abundant number, since it is smaller than the sum of its proper divisors (21396344).

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

20465896 is a wasteful number, since it uses less digits than its factorization.

20465896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232584 (or 232580 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 20465896 is about 4523.9248446454. The cubic root of 20465896 is about 273.5333310536.

The spelling of 20465896 in words is "twenty million, four hundred sixty-five thousand, eight hundred ninety-six".