21950632 has 16 divisors (see below), whose sum is σ = 44899200. Its totient is φ = 9977520.

The previous prime is 21950629. The next prime is 21950653. The reversal of 21950632 is 23605912.

It is a self number, because there is not a number n which added to its sum of digits gives 21950632.

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, 124632 + ... + 124807.

It is an arithmetic number, because the mean of its divisors is an integer number (2806200).

Almost surely, 2^21950632 is an apocalyptic number.

21950632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21950632 is an abundant number, since it is smaller than the sum of its proper divisors (22948568).

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

21950632 is a wasteful number, since it uses less digits than its factorization.

21950632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249456 (or 249452 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 21950632 is about 4685.1501576790. The cubic root of 21950632 is about 279.9941835526.

The spelling of 21950632 in words is "twenty-one million, nine hundred fifty thousand, six hundred thirty-two".