721152402 has 8 divisors (see below), whose sum is σ = 1442304816. Its totient is φ = 240384132.

The previous prime is 721152361. The next prime is 721152449. The reversal of 721152402 is 204251127.

It is a sphenic number, since it is the product of 3 distinct primes.

721152402 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60096028 + ... + 60096039.

It is an arithmetic number, because the mean of its divisors is an integer number (180288102).

Almost surely, 2^721152402 is an apocalyptic number.

721152402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

721152402 is a wasteful number, since it uses less digits than its factorization.

721152402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120192072.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 721152402 is about 26854.2808877840. The cubic root of 721152402 is about 896.7588777321.

The spelling of 721152402 in words is "seven hundred twenty-one million, one hundred fifty-two thousand, four hundred two".