40112345 has 32 divisors (see below), whose sum is σ = 61834752. Its totient is φ = 24279552.

The previous prime is 40112339. The next prime is 40112353. The reversal of 40112345 is 54321104.

It is a cyclic number.

It is not a de Polignac number, because 40112345 - 2²² = 35918041 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8549 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (1932336).

Almost surely, 2^40112345 is an apocalyptic number.

It is an amenable number.

40112345 is a deficient number, since it is larger than the sum of its proper divisors (21722407).

40112345 is a wasteful number, since it uses less digits than its factorization.

40112345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40112345 is about 6333.4307448649. The cubic root of 40112345 is about 342.3150687944.

Adding to 40112345 its reverse (54321104), we get a palindrome (94433449).

The spelling of 40112345 in words is "forty million, one hundred twelve thousand, three hundred forty-five".