21469796 has 12 divisors (see below), whose sum is σ = 37614780. Its totient is φ = 10722720.

The previous prime is 21469783. The next prime is 21469807. The reversal of 21469796 is 69796412.

It can be written as a sum of positive squares in 2 ways, for example, as 15319396 + 6150400 = 3914^2 + 2480^2 .

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, 1766 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (3134565).

Almost surely, 2^21469796 is an apocalyptic number.

It is an amenable number.

21469796 is a deficient number, since it is larger than the sum of its proper divisors (16144984).

21469796 is a wasteful number, since it uses less digits than its factorization.

21469796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094 (or 6092 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 21469796 is about 4633.5511219798. The cubic root of 21469796 is about 277.9346153356.

The spelling of 21469796 in words is "twenty-one million, four hundred sixty-nine thousand, seven hundred ninety-six".