1390093169 has 8 divisors (see below), whose sum is σ = 1417671720. Its totient is φ = 1362564736.

The previous prime is 1390093157. The next prime is 1390093189. The reversal of 1390093169 is 9613900931.

It can be written as a sum of positive squares in 4 ways, for example, as 22202944 + 1367890225 = 4712^2 + 36985^2 .

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-1390093169 is a prime.

It is a super-2 number, since 2×1390093169² = 3864718037000925122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390093139) 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, 46187 + ... + 70095.

It is an arithmetic number, because the mean of its divisors is an integer number (177208965).

Almost surely, 2^1390093169 is an apocalyptic number.

It is an amenable number.

1390093169 is a deficient number, since it is larger than the sum of its proper divisors (27578551).

1390093169 is a wasteful number, since it uses less digits than its factorization.

1390093169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25059.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 1390093169 is about 37283.9532372843. The cubic root of 1390093169 is about 1116.0439642264.

The spelling of 1390093169 in words is "one billion, three hundred ninety million, ninety-three thousand, one hundred sixty-nine".