720271650 has 48 divisors (see below), whose sum is σ = 2041458624. Its totient is φ = 164633280.

The previous prime is 720271633. The next prime is 720271679. The reversal of 720271650 is 56172027.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341937 + ... + 344036.

It is an arithmetic number, because the mean of its divisors is an integer number (42530388).

Almost surely, 2^720271650 is an apocalyptic number.

720271650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

720271650 is an abundant number, since it is smaller than the sum of its proper divisors (1321186974).

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

720271650 is a wasteful number, since it uses less digits than its factorization.

720271650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685995 (or 685990 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 720271650 is about 26837.8771515185. The cubic root of 720271650 is about 896.3936549160.

The spelling of 720271650 in words is "seven hundred twenty million, two hundred seventy-one thousand, six hundred fifty".