642062484 has 72 divisors (see below), whose sum is σ = 1936394880. Its totient is φ = 183444912.

The previous prime is 642062461. The next prime is 642062513. The reversal of 642062484 is 484260246.

It is a happy number.

642062484 is a `hidden beast` number, since 6 + 4 + 20 + 624 + 8 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55372 + ... + 65955.

Almost surely, 2^642062484 is an apocalyptic number.

It is an amenable number.

642062484 is an abundant number, since it is smaller than the sum of its proper divisors (1294332396).

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

642062484 is a wasteful number, since it uses less digits than its factorization.

642062484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121354 (or 121339 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 642062484 is about 25338.9519120267. The cubic root of 642062484 is about 862.6986098387.

The spelling of 642062484 in words is "six hundred forty-two million, sixty-two thousand, four hundred eighty-four".