726047490 has 64 divisors (see below), whose sum is σ = 1993994496. Its totient is φ = 165741312.

The previous prime is 726047473. The next prime is 726047501. The reversal of 726047490 is 94740627.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211024 + ... + 214436.

It is an arithmetic number, because the mean of its divisors is an integer number (31156164).

Almost surely, 2^726047490 is an apocalyptic number.

726047490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

726047490 is an abundant number, since it is smaller than the sum of its proper divisors (1267947006).

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

726047490 is a wasteful number, since it uses less digits than its factorization.

726047490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 726047490 is about 26945.2684158091. The cubic root of 726047490 is about 898.7833312912.

The spelling of 726047490 in words is "seven hundred twenty-six million, forty-seven thousand, four hundred ninety".