40465140 has 24 divisors (see below), whose sum is σ = 113302560. Its totient is φ = 10790688.

The previous prime is 40465133. The next prime is 40465147. The reversal of 40465140 is 4156404.

It is an interprime number because it is at equal distance from previous prime (40465133) and next prime (40465147).

It is a self number, because there is not a number n which added to its sum of digits gives 40465140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40465147) 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, 337150 + ... + 337269.

It is an arithmetic number, because the mean of its divisors is an integer number (4720940).

Almost surely, 2^40465140 is an apocalyptic number.

It is an amenable number.

40465140 is an abundant number, since it is smaller than the sum of its proper divisors (72837420).

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

40465140 is a wasteful number, since it uses less digits than its factorization.

40465140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674431 (or 674429 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40465140 is about 6361.2215807972. The cubic root of 40465140 is about 343.3157142643.

The spelling of 40465140 in words is "forty million, four hundred sixty-five thousand, one hundred forty".