651494382 has 64 divisors (see below), whose sum is σ = 1710028800. Its totient is φ = 160310880.

The previous prime is 651494377. The next prime is 651494423. The reversal of 651494382 is 283494156.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28332 + ... + 45887.

It is an arithmetic number, because the mean of its divisors is an integer number (26719200).

Almost surely, 2^651494382 is an apocalyptic number.

651494382 is an abundant number, since it is smaller than the sum of its proper divisors (1058534418).

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

651494382 is a wasteful number, since it uses less digits than its factorization.

651494382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74261.

The product of its digits is 207360, while the sum is 42.

The square root of 651494382 is about 25524.3879848274. The cubic root of 651494382 is about 866.9024393707.

The spelling of 651494382 in words is "six hundred fifty-one million, four hundred ninety-four thousand, three hundred eighty-two".