20755942 has 16 divisors (see below), whose sum is σ = 33096960. Its totient is φ = 9734472.

The previous prime is 20755937. The next prime is 20755951. The reversal of 20755942 is 24955702.

It is a junction number, because it is equal to n+sod(n) for n = 20755898 and 20755907.

It is a congruent number.

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, 1263 + ... + 6565.

It is an arithmetic number, because the mean of its divisors is an integer number (2068560).

Almost surely, 2^20755942 is an apocalyptic number.

20755942 is a deficient number, since it is larger than the sum of its proper divisors (12341018).

20755942 is a wasteful number, since it uses less digits than its factorization.

20755942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 20755942 is about 4555.8689621191. The cubic root of 20755942 is about 274.8194605639.

The spelling of 20755942 in words is "twenty million, seven hundred fifty-five thousand, nine hundred forty-two".