20959474 has 8 divisors (see below), whose sum is σ = 31588848. Its totient is φ = 10429860.

The previous prime is 20959459. The next prime is 20959483. The reversal of 20959474 is 47495902.

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, 24412 + ... + 25255.

It is an arithmetic number, because the mean of its divisors is an integer number (3948606).

Almost surely, 2^20959474 is an apocalyptic number.

20959474 is a deficient number, since it is larger than the sum of its proper divisors (10629374).

20959474 is a wasteful number, since it uses less digits than its factorization.

20959474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49880.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 20959474 is about 4578.1518105017. The cubic root of 20959474 is about 275.7148300807.

The spelling of 20959474 in words is "twenty million, nine hundred fifty-nine thousand, four hundred seventy-four".