40913880 has 128 divisors (see below), whose sum is σ = 143078400. Its totient is φ = 9165312.

The previous prime is 40913879. The next prime is 40913891. The reversal of 40913880 is 8831904.

40913880 = T₃₄₄ + T₃₄₅ + ... + T₆₅₈.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44061 + ... + 44979.

It is an arithmetic number, because the mean of its divisors is an integer number (1117800).

Almost surely, 2^40913880 is an apocalyptic number.

40913880 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 40913880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71539200).

40913880 is an abundant number, since it is smaller than the sum of its proper divisors (102164520).

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

40913880 is a wasteful number, since it uses less digits than its factorization.

40913880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 40913880 is about 6396.3958601700. The cubic root of 40913880 is about 344.5801235242.

The spelling of 40913880 in words is "forty million, nine hundred thirteen thousand, eight hundred eighty".