720949800 has 48 divisors (see below), whose sum is σ = 2234946240. Its totient is φ = 192253120.

The previous prime is 720949799. The next prime is 720949807. The reversal of 720949800 is 8949027.

It is a super-2 number, since 2×720949800² = 1039537228240080000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (720949807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600192 + ... + 601391.

It is an arithmetic number, because the mean of its divisors is an integer number (46561380).

Almost surely, 2^720949800 is an apocalyptic number.

It is an amenable number.

720949800 is an abundant number, since it is smaller than the sum of its proper divisors (1513996440).

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

720949800 is a wasteful number, since it uses less digits than its factorization.

720949800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201602 (or 1201593 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 720949800 is about 26850.5083750755. The cubic root of 720949800 is about 896.6748907881.

The spelling of 720949800 in words is "seven hundred twenty million, nine hundred forty-nine thousand, eight hundred".