20957674 has 8 divisors (see below), whose sum is σ = 32450688. Its totient is φ = 10140780.

The previous prime is 20957663. The next prime is 20957689. The reversal of 20957674 is 47675902.

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

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, 168952 + ... + 169075.

It is an arithmetic number, because the mean of its divisors is an integer number (4056336).

Almost surely, 2^20957674 is an apocalyptic number.

20957674 is a deficient number, since it is larger than the sum of its proper divisors (11493014).

20957674 is a wasteful number, since it uses less digits than its factorization.

20957674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338060.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 20957674 is about 4577.9552204014. The cubic root of 20957674 is about 275.7069370565.

The spelling of 20957674 in words is "twenty million, nine hundred fifty-seven thousand, six hundred seventy-four".