418399990 has 16 divisors (see below), whose sum is σ = 753714720. Its totient is φ = 167227840.

The previous prime is 418399951. The next prime is 418399997. The reversal of 418399990 is 99993814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418399997) 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, 2671 + ... + 29050.

It is an arithmetic number, because the mean of its divisors is an integer number (47107170).

Almost surely, 2^418399990 is an apocalyptic number.

418399990 is a deficient number, since it is larger than the sum of its proper divisors (335314730).

418399990 is a wasteful number, since it uses less digits than its factorization.

418399990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33047.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 418399990 is about 20454.8280364319. The cubic root of 418399990 is about 747.9350547004.

The spelling of 418399990 in words is "four hundred eighteen million, three hundred ninety-nine thousand, nine hundred ninety".