1390332023 has 4 divisors (see below), whose sum is σ = 1391462688. Its totient is φ = 1389201360.

The previous prime is 1390332001. The next prime is 1390332089. The reversal of 1390332023 is 3202330931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1390332023 - 2²² = 1386137719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1390331983 and 1390332001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390532023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563486 + ... + 565947.

It is an arithmetic number, because the mean of its divisors is an integer number (347865672).

Almost surely, 2^1390332023 is an apocalyptic number.

1390332023 is a deficient number, since it is larger than the sum of its proper divisors (1130665).

1390332023 is a wasteful number, since it uses less digits than its factorization.

1390332023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130664.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 1390332023 is about 37287.1562739772. The cubic root of 1390332023 is about 1116.1078823159.

Adding to 1390332023 its reverse (3202330931), we get a palindrome (4592662954).

The spelling of 1390332023 in words is "one billion, three hundred ninety million, three hundred thirty-two thousand, twenty-three".