1340831732 has 12 divisors (see below), whose sum is σ = 2346935136. Its totient is φ = 670278840.

The previous prime is 1340831689. The next prime is 1340831743. The reversal of 1340831732 is 2371380431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10394 + ... + 52817.

It is an arithmetic number, because the mean of its divisors is an integer number (195577928).

Almost surely, 2^1340831732 is an apocalyptic number.

It is an amenable number.

1340831732 is a deficient number, since it is larger than the sum of its proper divisors (1006103404).

1340831732 is a wasteful number, since it uses less digits than its factorization.

1340831732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68518 (or 68516 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1340831732 is about 36617.3692665107. The cubic root of 1340831732 is about 1102.7018244502.

The spelling of 1340831732 in words is "one billion, three hundred forty million, eight hundred thirty-one thousand, seven hundred thirty-two".