724480290 has 48 divisors (see below), whose sum is σ = 1900344888. Its totient is φ = 191482368.

The previous prime is 724480277. The next prime is 724480301. The reversal of 724480290 is 92084427.

It can be written as a sum of positive squares in 4 ways, for example, as 168039369 + 556440921 = 12963^2 + 23589^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25449 + ... + 45788.

Almost surely, 2^724480290 is an apocalyptic number.

724480290 is an abundant number, since it is smaller than the sum of its proper divisors (1175864598).

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

724480290 is a wasteful number, since it uses less digits than its factorization.

724480290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71363 (or 71360 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 724480290 is about 26916.1715331137. The cubic root of 724480290 is about 898.1361798955.

The spelling of 724480290 in words is "seven hundred twenty-four million, four hundred eighty thousand, two hundred ninety".