40455888 has 80 divisors (see below), whose sum is σ = 114891456. Its totient is φ = 12165120.

The previous prime is 40455881. The next prime is 40455913. The reversal of 40455888 is 88855404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40455881) 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, 101706 + ... + 102102.

Almost surely, 2^40455888 is an apocalyptic number.

40455888 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 40455888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57445728).

40455888 is an abundant number, since it is smaller than the sum of its proper divisors (74435568).

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

40455888 is a wasteful number, since it uses less digits than its factorization.

40455888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 40455888 is about 6360.4943204125. The cubic root of 40455888 is about 343.2895468924.

The spelling of 40455888 in words is "forty million, four hundred fifty-five thousand, eight hundred eighty-eight".