405040955 has 32 divisors (see below), whose sum is σ = 560252160. Its totient is φ = 278017920.

The previous prime is 405040949. The next prime is 405040967. The reversal of 405040955 is 559040504.

It is a happy number.

It is not a de Polignac number, because 405040955 - 2⁴ = 405040939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362057 + ... + 363173.

It is an arithmetic number, because the mean of its divisors is an integer number (17507880).

Almost surely, 2^405040955 is an apocalyptic number.

405040955 is a deficient number, since it is larger than the sum of its proper divisors (155211205).

405040955 is a wasteful number, since it uses less digits than its factorization.

405040955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 405040955 is about 20125.6293069310. The cubic root of 405040955 is about 739.8885606476. Note that the first 3 decimals are identical.

The spelling of 405040955 in words is "four hundred five million, forty thousand, nine hundred fifty-five".