1340177772 has 12 divisors (see below), whose sum is σ = 3127081496. Its totient is φ = 446725920.

The previous prime is 1340177767. The next prime is 1340177791. The reversal of 1340177772 is 2777710431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1340177772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55840729 + ... + 55840752.

Almost surely, 2^1340177772 is an apocalyptic number.

1340177772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340177772 is an abundant number, since it is smaller than the sum of its proper divisors (1786903724).

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

1340177772 is a wasteful number, since it uses less digits than its factorization.

1340177772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111681488 (or 111681486 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 39.

The square root of 1340177772 is about 36608.4385353978. The cubic root of 1340177772 is about 1102.5225227684.

The spelling of 1340177772 in words is "one billion, three hundred forty million, one hundred seventy-seven thousand, seven hundred seventy-two".