40112387 has 4 divisors (see below), whose sum is σ = 45842736. Its totient is φ = 34382040.

The previous prime is 40112383. The next prime is 40112399. The reversal of 40112387 is 78321104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40112387 - 2² = 40112383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40112383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865164 + ... + 2865177.

It is an arithmetic number, because the mean of its divisors is an integer number (11460684).

Almost surely, 2^40112387 is an apocalyptic number.

40112387 is a deficient number, since it is larger than the sum of its proper divisors (5730349).

40112387 is an equidigital number, since it uses as much as digits as its factorization.

40112387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730348.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 40112387 is about 6333.4340606025. The cubic root of 40112387 is about 342.3151882691.

The spelling of 40112387 in words is "forty million, one hundred twelve thousand, three hundred eighty-seven".