40752558 has 128 divisors (see below), whose sum is σ = 115246080. Its totient is φ = 10585080.

The previous prime is 40752533. The next prime is 40752563. The reversal of 40752558 is 85525704.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3704773 + ... + 3704783.

It is an arithmetic number, because the mean of its divisors is an integer number (900360).

Almost surely, 2^40752558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40752558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57623040).

40752558 is an abundant number, since it is smaller than the sum of its proper divisors (74493522).

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

40752558 is an frugal number, since it uses more digits than its factorization.

40752558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 40752558 is about 6383.7730222808. The cubic root of 40752558 is about 344.1266378438.

The spelling of 40752558 in words is "forty million, seven hundred fifty-two thousand, five hundred fifty-eight".