720472900 has 36 divisors (see below), whose sum is σ = 1786774528. Its totient is φ = 247019040.

The previous prime is 720472873. The next prime is 720472901. The reversal of 720472900 is 9274027.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (720472901) 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, 513924 + ... + 515323.

Almost surely, 2^720472900 is an apocalyptic number.

720472900 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

720472900 is an abundant number, since it is smaller than the sum of its proper divisors (1066301628).

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

720472900 is a wasteful number, since it uses less digits than its factorization.

720472900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029268 (or 1029261 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 720472900 is about 26841.6262547559. The cubic root of 720472900 is about 896.4771338016.

It can be divided in two parts, 72047 and 2900, that added together give a palindrome (74947).

The spelling of 720472900 in words is "seven hundred twenty million, four hundred seventy-two thousand, nine hundred".