1340877924 has 81 divisors (see below), whose sum is σ = 3610605817. Its totient is φ = 419495808.

The previous prime is 1340877841. The next prime is 1340877947. The reversal of 1340877924 is 4297780431.

The square root of 1340877924 is 36618.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1043936100 + 296941824 = 32310^2 + 17232^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340877924.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3734857 + ... + 3735215.

Almost surely, 2^1340877924 is an apocalyptic number.

1340877924 is the 36618-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340877924

1340877924 is an abundant number, since it is smaller than the sum of its proper divisors (2269727893).

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

1340877924 is a wasteful number, since it uses less digits than its factorization.

1340877924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The cubic root of 1340877924 is about 1102.7144870925.

The spelling of 1340877924 in words is "one billion, three hundred forty million, eight hundred seventy-seven thousand, nine hundred twenty-four".