20932142 has 64 divisors (see below), whose sum is σ = 41817600. Its totient is φ = 7620480.

The previous prime is 20932141. The next prime is 20932147. The reversal of 20932142 is 24123902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191984 + ... + 192092.

It is an arithmetic number, because the mean of its divisors is an integer number (653400).

Almost surely, 2^20932142 is an apocalyptic number.

20932142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20932142 is a deficient number, since it is larger than the sum of its proper divisors (20885458).

20932142 is a wasteful number, since it uses less digits than its factorization.

20932142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20932142 is about 4575.1657893458. The cubic root of 20932142 is about 275.5949301921.

The spelling of 20932142 in words is "twenty million, nine hundred thirty-two thousand, one hundred forty-two".