20912374 has 8 divisors (see below), whose sum is σ = 35849808. Its totient is φ = 8962440.

The previous prime is 20912351. The next prime is 20912377. The reversal of 20912374 is 47321902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20912377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746857 + ... + 746884.

It is an arithmetic number, because the mean of its divisors is an integer number (4481226).

Almost surely, 2^20912374 is an apocalyptic number.

20912374 is a deficient number, since it is larger than the sum of its proper divisors (14937434).

20912374 is a wasteful number, since it uses less digits than its factorization.

20912374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493750.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20912374 is about 4573.0049201810. The cubic root of 20912374 is about 275.5081469654.

It can be divided in two parts, 2091 and 2374, that added together give a triangular number (4465 = T₉₄).

The spelling of 20912374 in words is "twenty million, nine hundred twelve thousand, three hundred seventy-four".