40023896 has 48 divisors (see below), whose sum is σ = 83311200. Its totient is φ = 18011840.

The previous prime is 40023871. The next prime is 40023901. The reversal of 40023896 is 69832004.

40023896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167345 + ... + 167583.

It is an arithmetic number, because the mean of its divisors is an integer number (1735650).

Almost surely, 2^40023896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40023896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41655600).

40023896 is an abundant number, since it is smaller than the sum of its proper divisors (43287304).

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

40023896 is a wasteful number, since it uses less digits than its factorization.

40023896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40023896 is about 6326.4441829514. Note that the first 3 decimals coincide. The cubic root of 40023896 is about 342.0632784204.

The spelling of 40023896 in words is "forty million, twenty-three thousand, eight hundred ninety-six".