1390460453 has 4 divisors (see below), whose sum is σ = 1435314048. Its totient is φ = 1345606860.

The previous prime is 1390460443. The next prime is 1390460471. The reversal of 1390460453 is 3540640931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1390460453 - 2¹² = 1390456357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390460443) 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, 22426751 + ... + 22426812.

It is an arithmetic number, because the mean of its divisors is an integer number (358828512).

Almost surely, 2^1390460453 is an apocalyptic number.

It is an amenable number.

1390460453 is a deficient number, since it is larger than the sum of its proper divisors (44853595).

1390460453 is an equidigital number, since it uses as much as digits as its factorization.

1390460453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44853594.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1390460453 is about 37288.8784089841. The cubic root of 1390460453 is about 1116.1422475657.

The spelling of 1390460453 in words is "one billion, three hundred ninety million, four hundred sixty thousand, four hundred fifty-three".