404612953 has 4 divisors (see below), whose sum is σ = 405547828. Its totient is φ = 403678080.

The previous prime is 404612911. The next prime is 404612963. The reversal of 404612953 is 359216404.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41062464 + 363550489 = 6408^2 + 19067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404612953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404612963) 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, 466788 + ... + 467653.

It is an arithmetic number, because the mean of its divisors is an integer number (101386957).

Almost surely, 2^404612953 is an apocalyptic number.

It is an amenable number.

404612953 is a deficient number, since it is larger than the sum of its proper divisors (934875).

404612953 is an equidigital number, since it uses as much as digits as its factorization.

404612953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934874.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 404612953 is about 20114.9932388753. The cubic root of 404612953 is about 739.6278582937.

The spelling of 404612953 in words is "four hundred four million, six hundred twelve thousand, nine hundred fifty-three".