40090488 has 64 divisors (see below), whose sum is σ = 107321760. Its totient is φ = 12435456.

The previous prime is 40090469. The next prime is 40090489. The reversal of 40090488 is 88409004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40090489) 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, 39070 + ... + 40082.

Almost surely, 2^40090488 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 40090488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53660880).

40090488 is an abundant number, since it is smaller than the sum of its proper divisors (67231272).

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

40090488 is a wasteful number, since it uses less digits than its factorization.

40090488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1132 counting only the distinct ones).

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

The square root of 40090488 is about 6331.7049836517. The cubic root of 40090488 is about 342.2528822877.

The spelling of 40090488 in words is "forty million, ninety thousand, four hundred eighty-eight".