40403214 has 12 divisors (see below), whose sum is σ = 87540336. Its totient is φ = 13467732.

The previous prime is 40403201. The next prime is 40403243. The reversal of 40403214 is 41230404.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2244623 = 40403214 / (4 + 0 + 4 + 0 + 3 + 2 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122294 + ... + 1122329.

It is an arithmetic number, because the mean of its divisors is an integer number (7295028).

Almost surely, 2^40403214 is an apocalyptic number.

40403214 is an abundant number, since it is smaller than the sum of its proper divisors (47137122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40403214 is a wasteful number, since it uses less digits than its factorization.

40403214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244631 (or 2244628 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40403214 is about 6356.3522558147. The cubic root of 40403214 is about 343.1404932935.

Adding to 40403214 its reverse (41230404), we get a palindrome (81633618).

The spelling of 40403214 in words is "forty million, four hundred three thousand, two hundred fourteen".