20358942 has 16 divisors (see below), whose sum is σ = 41138832. Its totient is φ = 6716160.

The previous prime is 20358941. The next prime is 20358959. The reversal of 20358942 is 24985302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16909 + ... + 18072.

It is an arithmetic number, because the mean of its divisors is an integer number (2571177).

Almost surely, 2^20358942 is an apocalyptic number.

20358942 is an abundant number, since it is smaller than the sum of its proper divisors (20779890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20358942 is a wasteful number, since it uses less digits than its factorization.

20358942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35083.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 20358942 is about 4512.0884299845. The cubic root of 20358942 is about 273.0560069718.

The spelling of 20358942 in words is "twenty million, three hundred fifty-eight thousand, nine hundred forty-two".