20492694 has 12 divisors (see below), whose sum is σ = 44400876. Its totient is φ = 6830892.

The previous prime is 20492677. The next prime is 20492699. The reversal of 20492694 is 49629402.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569224 + ... + 569259.

It is an arithmetic number, because the mean of its divisors is an integer number (3700073).

Almost surely, 2^20492694 is an apocalyptic number.

20492694 is an abundant number, since it is smaller than the sum of its proper divisors (23908182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20492694 is a wasteful number, since it uses less digits than its factorization.

20492694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138491 (or 1138488 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 20492694 is about 4526.8856844413. The cubic root of 20492694 is about 273.6526669669.

The spelling of 20492694 in words is "twenty million, four hundred ninety-two thousand, six hundred ninety-four".