1345740938 has 32 divisors (see below), whose sum is σ = 2113413120. Its totient is φ = 641951280.

The previous prime is 1345740937. The next prime is 1345740941. The reversal of 1345740938 is 8390475431.

It is a super-2 number, since 2×1345740938² = 3622037344418239688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345740937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2292281 + ... + 2292867.

It is an arithmetic number, because the mean of its divisors is an integer number (66044160).

Almost surely, 2^1345740938 is an apocalyptic number.

1345740938 is a deficient number, since it is larger than the sum of its proper divisors (767672182).

1345740938 is a wasteful number, since it uses less digits than its factorization.

1345740938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1345740938 is about 36684.3418640706. The cubic root of 1345740938 is about 1104.0459645543.

The spelling of 1345740938 in words is "one billion, three hundred forty-five million, seven hundred forty thousand, nine hundred thirty-eight".