1340506377 has 36 divisors (see below), whose sum is σ = 2255722560. Its totient is φ = 764879472.

The previous prime is 1340506327. The next prime is 1340506393. The reversal of 1340506377 is 7736050431.

1340506377 is a `hidden beast` number, since 13 + 4 + 0 + 5 + 0 + 637 + 7 = 666.

It is not a de Polignac number, because 1340506377 - 2⁶ = 1340506313 is a prime.

It is a super-2 number, since 2×1340506377² = 3593914693555332258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340506327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 368188 + ... + 371810.

It is an arithmetic number, because the mean of its divisors is an integer number (62658960).

Almost surely, 2^1340506377 is an apocalyptic number.

It is an amenable number.

1340506377 is a deficient number, since it is larger than the sum of its proper divisors (915216183).

1340506377 is a wasteful number, since it uses less digits than its factorization.

1340506377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 1340506377 is about 36612.9263648783. The cubic root of 1340506377 is about 1102.6126264383.

The spelling of 1340506377 in words is "one billion, three hundred forty million, five hundred six thousand, three hundred seventy-seven".