1390308423 has 8 divisors (see below), whose sum is σ = 2118565248. Its totient is φ = 794461944.

The previous prime is 1390308389. The next prime is 1390308431. The reversal of 1390308423 is 3248030931.

It is a happy number.

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

It is not a de Polignac number, because 1390308423 - 2¹² = 1390304327 is a prime.

It is a super-2 number, since 2×1390308423² = 3865915022129493858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390308443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33102561 + ... + 33102602.

It is an arithmetic number, because the mean of its divisors is an integer number (264820656).

Almost surely, 2^1390308423 is an apocalyptic number.

1390308423 is a deficient number, since it is larger than the sum of its proper divisors (728256825).

1390308423 is an equidigital number, since it uses as much as digits as its factorization.

1390308423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66205173.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 1390308423 is about 37286.8398097774. The cubic root of 1390308423 is about 1116.1015672068.

The spelling of 1390308423 in words is "one billion, three hundred ninety million, three hundred eight thousand, four hundred twenty-three".