64863342 has 20 divisors (see below), whose sum is σ = 145342296. Its totient is φ = 21621060.

The previous prime is 64863329. The next prime is 64863349. The reversal of 64863342 is 24336846.

It is a happy number.

64863342 is a `hidden beast` number, since 648 + 6 + 3 + 3 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64863297 and 64863306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64863349) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 200034 + ... + 200357.

Almost surely, 2^64863342 is an apocalyptic number.

64863342 is an abundant number, since it is smaller than the sum of its proper divisors (80478954).

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

64863342 is a wasteful number, since it uses less digits than its factorization.

64863342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400405 (or 400396 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 64863342 is about 8053.7781196157. The cubic root of 64863342 is about 401.7906015710.

The spelling of 64863342 in words is "sixty-four million, eight hundred sixty-three thousand, three hundred forty-two".