1340564342 has 32 divisors (see below), whose sum is σ = 2413605600. Its totient is φ = 551674368.

The previous prime is 1340564333. The next prime is 1340564363. The reversal of 1340564342 is 2434650431.

It is a super-2 number, since 2×1340564342² = 3594225510083785928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340564299 and 1340564308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71417 + ... + 88212.

It is an arithmetic number, because the mean of its divisors is an integer number (75425175).

Almost surely, 2^1340564342 is an apocalyptic number.

1340564342 is a deficient number, since it is larger than the sum of its proper divisors (1073041258).

1340564342 is a wasteful number, since it uses less digits than its factorization.

1340564342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159680.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 1340564342 is about 36613.7179483319. The cubic root of 1340564342 is about 1102.6285189450.

The spelling of 1340564342 in words is "one billion, three hundred forty million, five hundred sixty-four thousand, three hundred forty-two".