21350896 has 20 divisors (see below), whose sum is σ = 47277232. Its totient is φ = 9150336.

The previous prime is 21350869. The next prime is 21350897. The reversal of 21350896 is 69805312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21350897) 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, 95205 + ... + 95428.

Almost surely, 2^21350896 is an apocalyptic number.

It is an amenable number.

21350896 is an abundant number, since it is smaller than the sum of its proper divisors (25926336).

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

21350896 is a wasteful number, since it uses less digits than its factorization.

21350896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190648 (or 190642 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 21350896 is about 4620.7029768207. The cubic root of 21350896 is about 277.4205968204.

The spelling of 21350896 in words is "twenty-one million, three hundred fifty thousand, eight hundred ninety-six".