649754370 has 96 divisors (see below), whose sum is σ = 1788044544. Its totient is φ = 163363200.

The previous prime is 649754351. The next prime is 649754411. The reversal of 649754370 is 73457946.

649754370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144760 + ... + 149180.

It is an arithmetic number, because the mean of its divisors is an integer number (18625464).

Almost surely, 2^649754370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649754370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894022272).

649754370 is an abundant number, since it is smaller than the sum of its proper divisors (1138290174).

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

649754370 is a wasteful number, since it uses less digits than its factorization.

649754370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4525 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 649754370 is about 25490.2799121548. The cubic root of 649754370 is about 866.1299765619.

The spelling of 649754370 in words is "six hundred forty-nine million, seven hundred fifty-four thousand, three hundred seventy".