1390344059 has 8 divisors (see below), whose sum is σ = 1497630960. Its totient is φ = 1283105376.

The previous prime is 1390344049. The next prime is 1390344061. The reversal of 1390344059 is 9504430931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1390344059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390344029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67157 + ... + 85385.

It is an arithmetic number, because the mean of its divisors is an integer number (187203870).

Almost surely, 2^1390344059 is an apocalyptic number.

1390344059 is a deficient number, since it is larger than the sum of its proper divisors (107286901).

1390344059 is a wasteful number, since it uses less digits than its factorization.

1390344059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24109.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1390344059 is about 37287.3176696850. The cubic root of 1390344059 is about 1116.1111029940. Note that the first 4 decimals are identical.

The spelling of 1390344059 in words is "one billion, three hundred ninety million, three hundred forty-four thousand, fifty-nine".