20942374 has 8 divisors (see below), whose sum is σ = 32779440. Its totient is φ = 10015896.

The previous prime is 20942371. The next prime is 20942377. The reversal of 20942374 is 47324902.

It is an interprime number because it is at equal distance from previous prime (20942371) and next prime (20942377).

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 (20942371) 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, 227589 + ... + 227680.

It is an arithmetic number, because the mean of its divisors is an integer number (4097430).

Almost surely, 2^20942374 is an apocalyptic number.

20942374 is a deficient number, since it is larger than the sum of its proper divisors (11837066).

20942374 is a wasteful number, since it uses less digits than its factorization.

20942374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455294.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 20942374 is about 4576.2838635732. The cubic root of 20942374 is about 275.6398280973.

It can be divided in two parts, 20942 and 374, that added together give a square (21316 = 146²).

The spelling of 20942374 in words is "twenty million, nine hundred forty-two thousand, three hundred seventy-four".