404253013 has 8 divisors (see below), whose sum is σ = 429905880. Its totient is φ = 378808320.

The previous prime is 404253007. The next prime is 404253023. The reversal of 404253013 is 310352404.

It can be written as a sum of positive squares in 4 ways, for example, as 234028804 + 170224209 = 15298^2 + 13047^2 .

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-404253013 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 (404253023) 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, 48028 + ... + 55813.

It is an arithmetic number, because the mean of its divisors is an integer number (53738235).

Almost surely, 2^404253013 is an apocalyptic number.

It is an amenable number.

404253013 is a deficient number, since it is larger than the sum of its proper divisors (25652867).

404253013 is a wasteful number, since it uses less digits than its factorization.

404253013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104087.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 404253013 is about 20106.0441907403. The cubic root of 404253013 is about 739.4084711559.

The spelling of 404253013 in words is "four hundred four million, two hundred fifty-three thousand, thirteen".