40014540 has 48 divisors (see below), whose sum is σ = 124491360. Its totient is φ = 10670400.

The previous prime is 40014539. The next prime is 40014571. The reversal of 40014540 is 4541004.

It is a super-2 number, since 2×40014540² = 3202326822823200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36511 + ... + 37590.

It is an arithmetic number, because the mean of its divisors is an integer number (2593570).

Almost surely, 2^40014540 is an apocalyptic number.

It is an amenable number.

40014540 is an abundant number, since it is smaller than the sum of its proper divisors (84476820).

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

40014540 is a wasteful number, since it uses less digits than its factorization.

40014540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74119 (or 74111 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40014540 is about 6325.7047038255. The cubic root of 40014540 is about 342.0366227325.

Adding to 40014540 its reverse (4541004), we get a palindrome (44555544).

The spelling of 40014540 in words is "forty million, fourteen thousand, five hundred forty".