405074025 has 36 divisors (see below), whose sum is σ = 727005552. Its totient is φ = 215601120.

The previous prime is 405074023. The next prime is 405074051. The reversal of 405074025 is 520470504.

It is not a de Polignac number, because 405074025 - 2¹ = 405074023 is a prime.

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 405074025.

It is not an unprimeable number, because it can be changed into a prime (405074023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130542 + ... + 133608.

Almost surely, 2^405074025 is an apocalyptic number.

405074025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

405074025 is a deficient number, since it is larger than the sum of its proper divisors (321931527).

405074025 is a wasteful number, since it uses less digits than its factorization.

405074025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 405074025 is about 20126.4508793776. The cubic root of 405074025 is about 739.9086964293.

The spelling of 405074025 in words is "four hundred five million, seventy-four thousand, twenty-five".