20852642 has 16 divisors (see below), whose sum is σ = 33219072. Its totient is φ = 9783360.

The previous prime is 20852639. The next prime is 20852687. The reversal of 20852642 is 24625802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13943 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (2076192).

Almost surely, 2^20852642 is an apocalyptic number.

20852642 is a deficient number, since it is larger than the sum of its proper divisors (12366430).

20852642 is a wasteful number, since it uses less digits than its factorization.

20852642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20852642 is about 4566.4693144704. The cubic root of 20852642 is about 275.2455855760.

The spelling of 20852642 in words is "twenty million, eight hundred fifty-two thousand, six hundred forty-two".