726554290 has 64 divisors (see below), whose sum is σ = 1639284480. Its totient is φ = 225239040.

The previous prime is 726554287. The next prime is 726554303. The reversal of 726554290 is 92455627.

It is a super-2 number, since 2×726554290² = 1055762272634808200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146166 + ... + 151054.

It is an arithmetic number, because the mean of its divisors is an integer number (25613820).

Almost surely, 2^726554290 is an apocalyptic number.

726554290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

726554290 is an abundant number, since it is smaller than the sum of its proper divisors (912730190).

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

726554290 is a wasteful number, since it uses less digits than its factorization.

726554290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 726554290 is about 26954.6710237762. The cubic root of 726554290 is about 898.9924073527.

The spelling of 726554290 in words is "seven hundred twenty-six million, five hundred fifty-four thousand, two hundred ninety".