418161988 has 48 divisors (see below), whose sum is σ = 813867264. Its totient is φ = 186982400.

The previous prime is 418161983. The next prime is 418162021. The reversal of 418161988 is 889161814.

It is a super-2 number, since 2×418161988² = 349718896416224288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (418161983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260388 + ... + 261988.

It is an arithmetic number, because the mean of its divisors is an integer number (16955568).

Almost surely, 2^418161988 is an apocalyptic number.

It is an amenable number.

418161988 is a deficient number, since it is larger than the sum of its proper divisors (395705276).

418161988 is a wasteful number, since it uses less digits than its factorization.

418161988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1810 counting only the distinct ones).

The product of its digits is 110592, while the sum is 46.

The square root of 418161988 is about 20449.0094625632. The cubic root of 418161988 is about 747.7932097301.

The spelling of 418161988 in words is "four hundred eighteen million, one hundred sixty-one thousand, nine hundred eighty-eight".