649179372 has 24 divisors (see below), whose sum is σ = 1520793792. Its totient is φ = 215530000.

The previous prime is 649179371. The next prime is 649179373. The reversal of 649179372 is 273971946.

It is a happy number.

649179372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (649179371) and next prime (649179373).

It is not an unprimeable number, because it can be changed into a prime (649179371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104754 + ... + 110777.

It is an arithmetic number, because the mean of its divisors is an integer number (63366408).

Almost surely, 2^649179372 is an apocalyptic number.

It is an amenable number.

649179372 is an abundant number, since it is smaller than the sum of its proper divisors (871614420).

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

649179372 is a wasteful number, since it uses less digits than its factorization.

649179372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215789 (or 215787 counting only the distinct ones).

The product of its digits is 571536, while the sum is 48.

The square root of 649179372 is about 25478.9986459437. The cubic root of 649179372 is about 865.8744081977.

The spelling of 649179372 in words is "six hundred forty-nine million, one hundred seventy-nine thousand, three hundred seventy-two".