405240088 has 16 divisors (see below), whose sum is σ = 828900360. Its totient is φ = 184200000.

The previous prime is 405240083. The next prime is 405240089. The reversal of 405240088 is 880042504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405240083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302413 + ... + 2302588.

Almost surely, 2^405240088 is an apocalyptic number.

It is an amenable number.

405240088 is an abundant number, since it is smaller than the sum of its proper divisors (423660272).

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

405240088 is a wasteful number, since it uses less digits than its factorization.

405240088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605018 (or 4605014 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 405240088 is about 20130.5759480448. The cubic root of 405240088 is about 740.0097929067.

The spelling of 405240088 in words is "four hundred five million, two hundred forty thousand, eighty-eight".