721924050 has 24 divisors (see below), whose sum is σ = 1790372016. Its totient is φ = 192513040.

The previous prime is 721924031. The next prime is 721924067. The reversal of 721924050 is 50429127.

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

It is a junction number, because it is equal to n+sod(n) for n = 721923999 and 721924017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2406264 + ... + 2406563.

It is an arithmetic number, because the mean of its divisors is an integer number (74598834).

Almost surely, 2^721924050 is an apocalyptic number.

721924050 is an abundant number, since it is smaller than the sum of its proper divisors (1068447966).

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

721924050 is a wasteful number, since it uses less digits than its factorization.

721924050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812842 (or 4812837 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 721924050 is about 26868.6443647609. The cubic root of 721924050 is about 897.0786139059.

The spelling of 721924050 in words is "seven hundred twenty-one million, nine hundred twenty-four thousand, fifty".