1340213532 has 96 divisors (see below), whose sum is σ = 3616757760. Its totient is φ = 378362880.

The previous prime is 1340213419. The next prime is 1340213549. The reversal of 1340213532 is 2353120431.

It is a super-2 number, since 2×1340213532² = 3592344622711830048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4838178 + ... + 4838454.

It is an arithmetic number, because the mean of its divisors is an integer number (37674560).

Almost surely, 2^1340213532 is an apocalyptic number.

1340213532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340213532 is an abundant number, since it is smaller than the sum of its proper divisors (2276544228).

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

1340213532 is a wasteful number, since it uses less digits than its factorization.

1340213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1340213532 is about 36608.9269441212. The cubic root of 1340213532 is about 1102.5323288940.

Adding to 1340213532 its reverse (2353120431), we get a palindrome (3693333963).

The spelling of 1340213532 in words is "one billion, three hundred forty million, two hundred thirteen thousand, five hundred thirty-two".