40190912 has 28 divisors (see below), whose sum is σ = 80512920. Its totient is φ = 19904256.

The previous prime is 40190903. The next prime is 40190921. The reversal of 40190912 is 21909104.

It is an interprime number because it is at equal distance from previous prime (40190903) and next prime (40190921).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3914 + ... + 9782.

Almost surely, 2^40190912 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 40190912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40256460).

40190912 is an abundant number, since it is smaller than the sum of its proper divisors (40322008).

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

40190912 is a wasteful number, since it uses less digits than its factorization.

40190912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988 (or 5978 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 40190912 is about 6339.6302731311. The cubic root of 40190912 is about 342.5384175565.

The spelling of 40190912 in words is "forty million, one hundred ninety thousand, nine hundred twelve".