20492692 has 12 divisors (see below), whose sum is σ = 39122496. Its totient is φ = 9314840.

The previous prime is 20492677. The next prime is 20492699. The reversal of 20492692 is 29629402.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232828 + ... + 232915.

It is an arithmetic number, because the mean of its divisors is an integer number (3260208).

Almost surely, 2^20492692 is an apocalyptic number.

20492692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20492692 is a deficient number, since it is larger than the sum of its proper divisors (18629804).

20492692 is a wasteful number, since it uses less digits than its factorization.

20492692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465758 (or 465756 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 20492692 is about 4526.8854635389. The cubic root of 20492692 is about 273.6526580645.

The spelling of 20492692 in words is "twenty million, four hundred ninety-two thousand, six hundred ninety-two".