40036923 has 48 divisors (see below), whose sum is σ = 63461216. Its totient is φ = 25194240.

The previous prime is 40036897. The next prime is 40036949. The reversal of 40036923 is 32963004.

It is an interprime number because it is at equal distance from previous prime (40036897) and next prime (40036949).

It is not a de Polignac number, because 40036923 - 2⁵ = 40036891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40036993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 548415 + ... + 548487.

Almost surely, 2^40036923 is an apocalyptic number.

40036923 is a deficient number, since it is larger than the sum of its proper divisors (23424293).

40036923 is an equidigital number, since it uses as much as digits as its factorization.

40036923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 40036923 is about 6327.4736664802. The cubic root of 40036923 is about 342.1003860436.

Adding to 40036923 its reverse (32963004), we get a palindrome (72999927).

The spelling of 40036923 in words is "forty million, thirty-six thousand, nine hundred twenty-three".