731376340 has 24 divisors (see below), whose sum is σ = 1540183680. Its totient is φ = 291732768.

The previous prime is 731376337. The next prime is 731376343. The reversal of 731376340 is 43673137.

It is an interprime number because it is at equal distance from previous prime (731376337) and next prime (731376343).

It is a super-2 number, since 2×731376340² = 1069822701423591200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 731376296 and 731376305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731376343) 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, 43752 + ... + 58111.

It is an arithmetic number, because the mean of its divisors is an integer number (64174320).

Almost surely, 2^731376340 is an apocalyptic number.

It is an amenable number.

731376340 is an abundant number, since it is smaller than the sum of its proper divisors (808807340).

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

731376340 is a wasteful number, since it uses less digits than its factorization.

731376340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102231 (or 102229 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 731376340 is about 27043.9704925146. The cubic root of 731376340 is about 900.9768570345.

The spelling of 731376340 in words is "seven hundred thirty-one million, three hundred seventy-six thousand, three hundred forty".