731516406 has 16 divisors (see below), whose sum is σ = 1463302848. Its totient is φ = 243793800.

The previous prime is 731516389. The next prime is 731516411. The reversal of 731516406 is 604615137.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 47841 + ... + 61251.

It is an arithmetic number, because the mean of its divisors is an integer number (91456428).

Almost surely, 2^731516406 is an apocalyptic number.

731516406 is an abundant number, since it is smaller than the sum of its proper divisors (731786442).

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

731516406 is a wasteful number, since it uses less digits than its factorization.

731516406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22507.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 731516406 is about 27046.5599661029. The cubic root of 731516406 is about 901.0343687706.

The spelling of 731516406 in words is "seven hundred thirty-one million, five hundred sixteen thousand, four hundred six".