1372731340 has 24 divisors (see below), whose sum is σ = 2895333840. Its totient is φ = 546692928.

The previous prime is 1372731329. The next prime is 1372731341. The reversal of 1372731340 is 431372731.

It is not an unprimeable number, because it can be changed into a prime (1372731341) 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, 145282 + ... + 154441.

It is an arithmetic number, because the mean of its divisors is an integer number (120638910).

Almost surely, 2^1372731340 is an apocalyptic number.

1372731340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372731340 is an abundant number, since it is smaller than the sum of its proper divisors (1522602500).

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

1372731340 is a wasteful number, since it uses less digits than its factorization.

1372731340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299961 (or 299959 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 1372731340 is about 37050.3892017344. The cubic root of 1372731340 is about 1111.3781383624.

The spelling of 1372731340 in words is "one billion, three hundred seventy-two million, seven hundred thirty-one thousand, three hundred forty".