408987955 has 16 divisors (see below), whose sum is σ = 542251584. Its totient is φ = 294553600.

The previous prime is 408987911. The next prime is 408987959. The reversal of 408987955 is 559789804.

It is not a de Polignac number, because 408987955 - 2⁷ = 408987827 is a prime.

It is a super-2 number, since 2×408987955² = 334542294670164050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 408987896 and 408987905.

It is not an unprimeable number, because it can be changed into a prime (408987959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102646 + ... + 106555.

It is an arithmetic number, because the mean of its divisors is an integer number (33890724).

Almost surely, 2^408987955 is an apocalyptic number.

408987955 is a deficient number, since it is larger than the sum of its proper divisors (133263629).

408987955 is a wasteful number, since it uses less digits than its factorization.

408987955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209246.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 408987955 is about 20223.4506205049. The cubic root of 408987955 is about 742.2841251750.

The spelling of 408987955 in words is "four hundred eight million, nine hundred eighty-seven thousand, nine hundred fifty-five".