40307814 has 32 divisors (see below), whose sum is σ = 90455040. Its totient is φ = 13303656.

The previous prime is 40307809. The next prime is 40307819. The reversal of 40307814 is 41870304.

It is an interprime number because it is at equal distance from previous prime (40307809) and next prime (40307819).

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 (40307819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1939 + ... + 9185.

It is an arithmetic number, because the mean of its divisors is an integer number (2826720).

Almost surely, 2^40307814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40307814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45227520).

40307814 is an abundant number, since it is smaller than the sum of its proper divisors (50147226).

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

40307814 is a wasteful number, since it uses less digits than its factorization.

40307814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7361 (or 7355 counting only the distinct ones).

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

The square root of 40307814 is about 6348.8435167359. The cubic root of 40307814 is about 342.8702061987.

The spelling of 40307814 in words is "forty million, three hundred seven thousand, eight hundred fourteen".