40988220 has 96 divisors (see below), whose sum is σ = 141270528. Its totient is φ = 8646912.

The previous prime is 40988219. The next prime is 40988249. The reversal of 40988220 is 2288904.

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, 1707 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (1471568).

Almost surely, 2^40988220 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 40988220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70635264).

40988220 is an abundant number, since it is smaller than the sum of its proper divisors (100282308).

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

40988220 is a wasteful number, since it uses less digits than its factorization.

40988220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539 (or 7537 counting only the distinct ones).

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

The square root of 40988220 is about 6402.2043078927. The cubic root of 40988220 is about 344.7886964854.

The spelling of 40988220 in words is "forty million, nine hundred eighty-eight thousand, two hundred twenty".