405056438 has 8 divisors (see below), whose sum is σ = 608709360. Its totient is φ = 202153320.

The previous prime is 405056429. The next prime is 405056479. The reversal of 405056438 is 834650504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 405056398 and 405056407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186098 + ... + 188261.

It is an arithmetic number, because the mean of its divisors is an integer number (76088670).

Almost surely, 2^405056438 is an apocalyptic number.

405056438 is a deficient number, since it is larger than the sum of its proper divisors (203652922).

405056438 is a wasteful number, since it uses less digits than its factorization.

405056438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374902.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 405056438 is about 20126.0139620343. The cubic root of 405056438 is about 739.8979881293.

The spelling of 405056438 in words is "four hundred five million, fifty-six thousand, four hundred thirty-eight".