21834950 has 24 divisors (see below), whose sum is σ = 41284560. Its totient is φ = 8589600.

The previous prime is 21834947. The next prime is 21834961. The reversal of 21834950 is 5943812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (1720190).

Almost surely, 2^21834950 is an apocalyptic number.

21834950 is a deficient number, since it is larger than the sum of its proper divisors (19449610).

21834950 is a wasteful number, since it uses less digits than its factorization.

21834950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232 (or 7227 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 21834950 is about 4672.7882468608. The cubic root of 21834950 is about 279.5014512807.

The spelling of 21834950 in words is "twenty-one million, eight hundred thirty-four thousand, nine hundred fifty".