405941022 has 48 divisors (see below), whose sum is σ = 891371520. Its totient is φ = 133506576.

The previous prime is 405940999. The next prime is 405941047. The reversal of 405941022 is 220149504.

405941022 is a `hidden beast` number, since 40 + 594 + 10 + 22 = 666.

It is a super-2 number, since 2×405941022² = 329576226684808968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 545983 + ... + 546725.

It is an arithmetic number, because the mean of its divisors is an integer number (18570240).

Almost surely, 2^405941022 is an apocalyptic number.

405941022 is an abundant number, since it is smaller than the sum of its proper divisors (485430498).

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

405941022 is a wasteful number, since it uses less digits than its factorization.

405941022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 405941022 is about 20147.9781119595. The cubic root of 405941022 is about 740.4362061752.

It can be divided in two parts, 40594 and 1022, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 405941022 in words is "four hundred five million, nine hundred forty-one thousand, twenty-two".