726473280 has 112 divisors (see below), whose sum is σ = 2484022464. Its totient is φ = 178821120.

The previous prime is 726473273. The next prime is 726473299. The reversal of 726473280 is 82374627.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16626 + ... + 41585.

It is an arithmetic number, because the mean of its divisors is an integer number (22178772).

Almost surely, 2^726473280 is an apocalyptic number.

It is an amenable number.

726473280 is an abundant number, since it is smaller than the sum of its proper divisors (1757549184).

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

726473280 is a wasteful number, since it uses less digits than its factorization.

726473280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58244 (or 58234 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 726473280 is about 26953.1682738783. The cubic root of 726473280 is about 898.9589938910.

The spelling of 726473280 in words is "seven hundred twenty-six million, four hundred seventy-three thousand, two hundred eighty".