404273025 has 72 divisors (see below), whose sum is σ = 808837120. Its totient is φ = 198987840.

The previous prime is 404273017. The next prime is 404273059. The reversal of 404273025 is 520372404.

It is not a de Polignac number, because 404273025 - 2³ = 404273017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404273025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 76416 + ... + 81534.

Almost surely, 2^404273025 is an apocalyptic number.

404273025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

404273025 is an abundant number, since it is smaller than the sum of its proper divisors (404564095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404273025 is a wasteful number, since it uses less digits than its factorization.

404273025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157 (or 5140 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 404273025 is about 20106.5418458769. The cubic root of 404273025 is about 739.4206720941.

The spelling of 404273025 in words is "four hundred four million, two hundred seventy-three thousand, twenty-five".