20958142 has 8 divisors (see below), whose sum is σ = 31663800. Its totient is φ = 10403544.

The previous prime is 20958107. The next prime is 20958151. The reversal of 20958142 is 24185902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 37417 + ... + 37972.

It is an arithmetic number, because the mean of its divisors is an integer number (3957975).

Almost surely, 2^20958142 is an apocalyptic number.

20958142 is a deficient number, since it is larger than the sum of its proper divisors (10705658).

20958142 is a wasteful number, since it uses less digits than its factorization.

20958142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75530.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 20958142 is about 4578.0063346396. The cubic root of 20958142 is about 275.7089892863.

The spelling of 20958142 in words is "twenty million, nine hundred fifty-eight thousand, one hundred forty-two".