40037814 has 40 divisors (see below), whose sum is σ = 90639648. Its totient is φ = 13208400.

The previous prime is 40037791. The next prime is 40037819. The reversal of 40037814 is 41873004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40037819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15139 + ... + 17585.

Almost surely, 2^40037814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40037814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45319824).

40037814 is an abundant number, since it is smaller than the sum of its proper divisors (50601834).

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

40037814 is a wasteful number, since it uses less digits than its factorization.

40037814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40037814 is about 6327.5440733352. The cubic root of 40037814 is about 342.1029237776.

The spelling of 40037814 in words is "forty million, thirty-seven thousand, eight hundred fourteen".