40398814 has 8 divisors (see below), whose sum is σ = 60654240. Its totient is φ = 20180736.

The previous prime is 40398811. The next prime is 40398829. The reversal of 40398814 is 41889304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40398811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6454 + ... + 11065.

It is an arithmetic number, because the mean of its divisors is an integer number (7581780).

Almost surely, 2^40398814 is an apocalyptic number.

40398814 is a deficient number, since it is larger than the sum of its proper divisors (20255426).

40398814 is a wasteful number, since it uses less digits than its factorization.

40398814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18674.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 40398814 is about 6356.0061359316. The cubic root of 40398814 is about 343.1280365866.

The spelling of 40398814 in words is "forty million, three hundred ninety-eight thousand, eight hundred fourteen".