40143415 has 12 divisors (see below), whose sum is σ = 52163784. Its totient is φ = 29643744.

The previous prime is 40143403. The next prime is 40143437. The reversal of 40143415 is 51434104.

It is not a de Polignac number, because 40143415 - 2⁷ = 40143287 is a prime.

It is a super-2 number, since 2×40143415² = 3222987535724450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22909 + ... + 24598.

It is an arithmetic number, because the mean of its divisors is an integer number (4346982).

Almost surely, 2^40143415 is an apocalyptic number.

40143415 is a deficient number, since it is larger than the sum of its proper divisors (12020369).

40143415 is a wasteful number, since it uses less digits than its factorization.

40143415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47538 (or 47525 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40143415 is about 6335.8831270787. The cubic root of 40143415 is about 342.4034288268.

Adding to 40143415 its reverse (51434104), we get a palindrome (91577519).

The spelling of 40143415 in words is "forty million, one hundred forty-three thousand, four hundred fifteen".