64842442 has 16 divisors (see below), whose sum is σ = 111396672. Its totient is φ = 27730080.

The previous prime is 64842439. The next prime is 64842457. The reversal of 64842442 is 24424846.

It is a junction number, because it is equal to n+sod(n) for n = 64842398 and 64842407.

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, 2158 + ... + 11590.

It is an arithmetic number, because the mean of its divisors is an integer number (6962292).

Almost surely, 2^64842442 is an apocalyptic number.

64842442 is a deficient number, since it is larger than the sum of its proper divisors (46554230).

64842442 is a wasteful number, since it uses less digits than its factorization.

64842442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933.

The product of its digits is 49152, while the sum is 34.

The square root of 64842442 is about 8052.4804874026. The cubic root of 64842442 is about 401.7474424953.

The spelling of 64842442 in words is "sixty-four million, eight hundred forty-two thousand, four hundred forty-two".