40283880 has 384 divisors, whose sum is σ = 165473280. Its totient is φ = 7741440.

The previous prime is 40283839. The next prime is 40283899. The reversal of 40283880 is 8838204.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1299465 + ... + 1299495.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

Almost surely, 2^40283880 is an apocalyptic number.

40283880 is a gapful number since it is divisible by the number (40) 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 40283880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

40283880 is an abundant number, since it is smaller than the sum of its proper divisors (125189400).

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

40283880 is a wasteful number, since it uses less digits than its factorization.

40283880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 40283880 is about 6346.9583266317. The cubic root of 40283880 is about 342.8023295310.

The spelling of 40283880 in words is "forty million, two hundred eighty-three thousand, eight hundred eighty".