1340662572 has 36 divisors (see below), whose sum is σ = 3567261880. Its totient is φ = 423366912.

The previous prime is 1340662537. The next prime is 1340662597. The reversal of 1340662572 is 2752660431.

1340662572 is a `hidden beast` number, since 1 + 340 + 66 + 257 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1340662572² = 3594752263923310368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 979333 + ... + 980700.

Almost surely, 2^1340662572 is an apocalyptic number.

1340662572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340662572 is an abundant number, since it is smaller than the sum of its proper divisors (2226599308).

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

1340662572 is a wasteful number, since it uses less digits than its factorization.

1340662572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960062 (or 1960057 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1340662572 is about 36615.0593608695. The cubic root of 1340662572 is about 1102.6554500293.

The spelling of 1340662572 in words is "one billion, three hundred forty million, six hundred sixty-two thousand, five hundred seventy-two".