40310928 has 180 divisors, whose sum is σ = 136447740. Its totient is φ = 11063808.

The previous prime is 40310891. The next prime is 40310939. The reversal of 40310928 is 82901304.

It can be written as a sum of positive squares in 2 ways, for example, as 32626944 + 7683984 = 5712^2 + 2772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 204526 + ... + 204722.

It is an arithmetic number, because the mean of its divisors is an integer number (758043).

Almost surely, 2^40310928 is an apocalyptic number.

40310928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40310928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68223870).

40310928 is an abundant number, since it is smaller than the sum of its proper divisors (96136812).

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

40310928 is a wasteful number, since it uses less digits than its factorization.

40310928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40310928 is about 6349.0887535142. The cubic root of 40310928 is about 342.8790355068.

The spelling of 40310928 in words is "forty million, three hundred ten thousand, nine hundred twenty-eight".