1340455152 has 40 divisors (see below), whose sum is σ = 3468755664. Its totient is φ = 446055424.

The previous prime is 1340455121. The next prime is 1340455169. The reversal of 1340455152 is 2515540431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4918 + ... + 52010.

Almost surely, 2^1340455152 is an apocalyptic number.

1340455152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340455152 is an abundant number, since it is smaller than the sum of its proper divisors (2128300512).

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

1340455152 is a wasteful number, since it uses less digits than its factorization.

1340455152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47697 (or 47691 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1340455152 is about 36612.2268101791. The cubic root of 1340455152 is about 1102.5985814843.

Adding to 1340455152 its reverse (2515540431), we get a palindrome (3855995583).

The spelling of 1340455152 in words is "one billion, three hundred forty million, four hundred fifty-five thousand, one hundred fifty-two".