20079642 has 32 divisors (see below), whose sum is σ = 43997184. Its totient is φ = 6058800.

The previous prime is 20079623. The next prime is 20079673. The reversal of 20079642 is 24697002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19767 + ... + 20757.

It is an arithmetic number, because the mean of its divisors is an integer number (1374912).

Almost surely, 2^20079642 is an apocalyptic number.

20079642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20079642 is an abundant number, since it is smaller than the sum of its proper divisors (23917542).

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

20079642 is a wasteful number, since it uses less digits than its factorization.

20079642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20079642 is about 4481.0313544986. The cubic root of 20079642 is about 271.8015872072.

The spelling of 20079642 in words is "twenty million, seventy-nine thousand, six hundred forty-two".