40288092 has 48 divisors (see below), whose sum is σ = 102279072. Its totient is φ = 12268800.

The previous prime is 40288081. The next prime is 40288097. The reversal of 40288092 is 29088204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40288097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14478 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (2130814).

Almost surely, 2^40288092 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 40288092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51139536).

40288092 is an abundant number, since it is smaller than the sum of its proper divisors (61990980).

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

40288092 is a wasteful number, since it uses less digits than its factorization.

40288092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678 (or 2676 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 40288092 is about 6347.2901304415. The cubic root of 40288092 is about 342.8142766845.

The spelling of 40288092 in words is "forty million, two hundred eighty-eight thousand, ninety-two".