1650465072 has 50 divisors (see below), whose sum is σ = 4776928508. Its totient is φ = 550154592.

The previous prime is 1650465013. The next prime is 1650465143. The reversal of 1650465072 is 2705640561.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 635458 + ... + 638049.

Almost surely, 2^1650465072 is an apocalyptic number.

1650465072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1650465072 is an abundant number, since it is smaller than the sum of its proper divisors (3126463436).

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

1650465072 is a wasteful number, since it uses less digits than its factorization.

1650465072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273527 (or 1273512 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1650465072 is about 40625.9162604365. The cubic root of 1650465072 is about 1181.7767621905.

The spelling of 1650465072 in words is "one billion, six hundred fifty million, four hundred sixty-five thousand, seventy-two".