20464042 has 8 divisors (see below), whose sum is σ = 31275396. Its totient is φ = 10038912.

The previous prime is 20464027. The next prime is 20464057. The reversal of 20464042 is 24046402.

It is an interprime number because it is at equal distance from previous prime (20464027) and next prime (20464057).

It can be written as a sum of positive squares in 2 ways, for example, as 20349121 + 114921 = 4511^2 + 339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96423 + ... + 96634.

Almost surely, 2^20464042 is an apocalyptic number.

20464042 is a deficient number, since it is larger than the sum of its proper divisors (10811354).

20464042 is a wasteful number, since it uses less digits than its factorization.

20464042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193112.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20464042 is about 4523.7199294386. The cubic root of 20464042 is about 273.5250710340.

It can be divided in two parts, 204 and 64042, that added together give a palindrome (64246).

The spelling of 20464042 in words is "twenty million, four hundred sixty-four thousand, forty-two".