40940550 has 144 divisors (see below), whose sum is σ = 129179232. Its totient is φ = 9100800.

The previous prime is 40940533. The next prime is 40940561. The reversal of 40940550 is 5504904.

It is a super-2 number, since 2×40940550² = 3352257268605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 128992 + ... + 129308.

It is an arithmetic number, because the mean of its divisors is an integer number (897078).

Almost surely, 2^40940550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40940550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64589616).

40940550 is an abundant number, since it is smaller than the sum of its proper divisors (88238682).

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

40940550 is a wasteful number, since it uses less digits than its factorization.

40940550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 40940550 is about 6398.4802883185. The cubic root of 40940550 is about 344.6549795858.

The spelling of 40940550 in words is "forty million, nine hundred forty thousand, five hundred fifty".