40557750 has 64 divisors (see below), whose sum is σ = 107220672. Its totient is φ = 10176000.

The previous prime is 40557743. The next prime is 40557779. The reversal of 40557750 is 5775504.

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, 11160 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (1675323).

Almost surely, 2^40557750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40557750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53610336).

40557750 is an abundant number, since it is smaller than the sum of its proper divisors (66662922).

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

40557750 is a wasteful number, since it uses less digits than its factorization.

40557750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 3208 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 40557750 is about 6368.4966828915. The cubic root of 40557750 is about 343.5774230155.

The spelling of 40557750 in words is "forty million, five hundred fifty-seven thousand, seven hundred fifty".