40881528 has 48 divisors (see below), whose sum is σ = 111017400. Its totient is φ = 13590720.

The previous prime is 40881517. The next prime is 40881571. The reversal of 40881528 is 82518804.

It is a super-2 number, since 2×40881528² = 3342598663229568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40881492 and 40881501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47163 + ... + 48021.

Almost surely, 2^40881528 is an apocalyptic number.

It is an amenable number.

40881528 is an abundant number, since it is smaller than the sum of its proper divisors (70135872).

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

40881528 is a wasteful number, since it uses less digits than its factorization.

40881528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 40881528 is about 6393.8664358899. The cubic root of 40881528 is about 344.4892758235.

The spelling of 40881528 in words is "forty million, eight hundred eighty-one thousand, five hundred twenty-eight".