408997955 has 8 divisors (see below), whose sum is σ = 492000000. Its totient is φ = 326396736.

The previous prime is 408997943. The next prime is 408997957. The reversal of 408997955 is 559799804.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408997955 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 408997955.

It is not an unprimeable number, because it can be changed into a prime (408997957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97955 + ... + 102044.

It is an arithmetic number, because the mean of its divisors is an integer number (61500000).

Almost surely, 2^408997955 is an apocalyptic number.

408997955 is a deficient number, since it is larger than the sum of its proper divisors (83002045).

408997955 is a wasteful number, since it uses less digits than its factorization.

408997955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200413.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 408997955 is about 20223.6978567224. The cubic root of 408997955 is about 742.2901748892.

The spelling of 408997955 in words is "four hundred eight million, nine hundred ninety-seven thousand, nine hundred fifty-five".