20442892 has 6 divisors (see below), whose sum is σ = 35775068. Its totient is φ = 10221444.

The previous prime is 20442871. The next prime is 20442893. The reversal of 20442892 is 29824402.

It is not an unprimeable number, because it can be changed into a prime (20442893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555358 + ... + 2555365.

Almost surely, 2^20442892 is an apocalyptic number.

It is an amenable number.

20442892 is a deficient number, since it is larger than the sum of its proper divisors (15332176).

20442892 is a wasteful number, since it uses less digits than its factorization.

20442892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110727 (or 5110725 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20442892 is about 4521.3816472401. The cubic root of 20442892 is about 273.4308073268.

The spelling of 20442892 in words is "twenty million, four hundred forty-two thousand, eight hundred ninety-two".