64842444 has 30 divisors (see below), whose sum is σ = 169511804. Its totient is φ = 21614040.

The previous prime is 64842439. The next prime is 64842457. The reversal of 64842444 is 44424846.

64842444 is a `hidden beast` number, since 648 + 4 + 2 + 4 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 64842399 and 64842408.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99742 + ... + 100389.

Almost surely, 2^64842444 is an apocalyptic number.

It is an amenable number.

64842444 is an abundant number, since it is smaller than the sum of its proper divisors (104669360).

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

64842444 is a wasteful number, since it uses less digits than its factorization.

64842444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200147 (or 200136 counting only the distinct ones).

The product of its digits is 98304, while the sum is 36.

The square root of 64842444 is about 8052.4806115880. The cubic root of 64842444 is about 401.7474466258.

The spelling of 64842444 in words is "sixty-four million, eight hundred forty-two thousand, four hundred forty-four".