731472540 has 24 divisors (see below), whose sum is σ = 2048123280. Its totient is φ = 195059328.

The previous prime is 731472523. The next prime is 731472541. The reversal of 731472540 is 45274137.

731472540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731472541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6095545 + ... + 6095664.

It is an arithmetic number, because the mean of its divisors is an integer number (85338470).

Almost surely, 2^731472540 is an apocalyptic number.

It is an amenable number.

731472540 is an abundant number, since it is smaller than the sum of its proper divisors (1316650740).

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

731472540 is a wasteful number, since it uses less digits than its factorization.

731472540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191221 (or 12191219 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 731472540 is about 27045.7490190233. The cubic root of 731472540 is about 901.0163579813.

The spelling of 731472540 in words is "seven hundred thirty-one million, four hundred seventy-two thousand, five hundred forty".