40528488 has 192 divisors, whose sum is σ = 139043520. Its totient is φ = 9676800.

The previous prime is 40528487. The next prime is 40528511. The reversal of 40528488 is 88482504.

It is a super-2 number, since 2×40528488² = 3285116679132288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40528487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168048 + ... + 168288.

It is an arithmetic number, because the mean of its divisors is an integer number (724185).

Almost surely, 2^40528488 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 40528488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69521760).

40528488 is an abundant number, since it is smaller than the sum of its proper divisors (98515032).

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

40528488 is a wasteful number, since it uses less digits than its factorization.

40528488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 40528488 is about 6366.1988658854. The cubic root of 40528488 is about 343.4947739417.

The spelling of 40528488 in words is "forty million, five hundred twenty-eight thousand, four hundred eighty-eight".