649334124 has 48 divisors (see below), whose sum is σ = 1706540640. Its totient is φ = 213477120.

The previous prime is 649334123. The next prime is 649334131. The reversal of 649334124 is 421433946.

It is a happy number.

649334124 is a `hidden beast` number, since 649 + 3 + 3 + 4 + 1 + 2 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (649334123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33297 + ... + 49064.

It is an arithmetic number, because the mean of its divisors is an integer number (35552930).

Almost surely, 2^649334124 is an apocalyptic number.

It is an amenable number.

649334124 is an abundant number, since it is smaller than the sum of its proper divisors (1057206516).

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

649334124 is a wasteful number, since it uses less digits than its factorization.

649334124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82447 (or 82439 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 649334124 is about 25482.0353190243. The cubic root of 649334124 is about 865.9432053881.

The spelling of 649334124 in words is "six hundred forty-nine million, three hundred thirty-four thousand, one hundred twenty-four".