1340979952 has 40 divisors (see below), whose sum is σ = 2894502240. Its totient is φ = 597569280.

The previous prime is 1340979947. The next prime is 1340979979. The reversal of 1340979952 is 2599790431.

It is a junction number, because it is equal to n+sod(n) for n = 1340979896 and 1340979905.

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, 105124 + ... + 117187.

It is an arithmetic number, because the mean of its divisors is an integer number (72362556).

Almost surely, 2^1340979952 is an apocalyptic number.

It is an amenable number.

1340979952 is an abundant number, since it is smaller than the sum of its proper divisors (1553522288).

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

1340979952 is a wasteful number, since it uses less digits than its factorization.

1340979952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222361 (or 222355 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 1340979952 is about 36619.3931134856. The cubic root of 1340979952 is about 1102.7424550624.

The spelling of 1340979952 in words is "one billion, three hundred forty million, nine hundred seventy-nine thousand, nine hundred fifty-two".