720078152 has 8 divisors (see below), whose sum is σ = 1350146550. Its totient is φ = 360039072.

The previous prime is 720078133. The next prime is 720078179. The reversal of 720078152 is 251870027.

It can be written as a sum of positive squares in only one way, i.e., 633327556 + 86750596 = 25166^2 + 9314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45004877 + ... + 45004892.

Almost surely, 2^720078152 is an apocalyptic number.

It is an amenable number.

720078152 is a deficient number, since it is larger than the sum of its proper divisors (630068398).

720078152 is a wasteful number, since it uses less digits than its factorization.

720078152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90009775 (or 90009771 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 720078152 is about 26834.2719670201. The cubic root of 720078152 is about 896.3133769108.

The spelling of 720078152 in words is "seven hundred twenty million, seventy-eight thousand, one hundred fifty-two".