405140955 has 16 divisors (see below), whose sum is σ = 658853664. Its totient is φ = 212532480.

The previous prime is 405140951. The next prime is 405140959. The reversal of 405140955 is 559041504.

It is an interprime number because it is at equal distance from previous prime (405140951) and next prime (405140959).

It is not a de Polignac number, because 405140955 - 2² = 405140951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405140951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220474 + ... + 222303.

It is an arithmetic number, because the mean of its divisors is an integer number (41178354).

Almost surely, 2^405140955 is an apocalyptic number.

405140955 is a deficient number, since it is larger than the sum of its proper divisors (253712709).

405140955 is a wasteful number, since it uses less digits than its factorization.

405140955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442846.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 405140955 is about 20128.1135479707. The cubic root of 405140955 is about 739.9494456576.

The spelling of 405140955 in words is "four hundred five million, one hundred forty thousand, nine hundred fifty-five".