20364442 has 16 divisors (see below), whose sum is σ = 35654400. Its totient is φ = 8541648.

The previous prime is 20364437. The next prime is 20364451. The reversal of 20364442 is 24446302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14817 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (2228400).

Almost surely, 2^20364442 is an apocalyptic number.

20364442 is a deficient number, since it is larger than the sum of its proper divisors (15289958).

20364442 is a wasteful number, since it uses less digits than its factorization.

20364442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31005.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 20364442 is about 4512.6978626981. The cubic root of 20364442 is about 273.0805935936.

The spelling of 20364442 in words is "twenty million, three hundred sixty-four thousand, four hundred forty-two".