40449528 has 96 divisors (see below), whose sum is σ = 132593760. Its totient is φ = 10874880.

The previous prime is 40449509. The next prime is 40449581. The reversal of 40449528 is 82594404.

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 = 40449492 and 40449501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6208 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (1381185).

Almost surely, 2^40449528 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 40449528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66296880).

40449528 is an abundant number, since it is smaller than the sum of its proper divisors (92144232).

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

40449528 is a wasteful number, since it uses less digits than its factorization.

40449528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4750 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 40449528 is about 6359.9943396201. The cubic root of 40449528 is about 343.2715566315.

The spelling of 40449528 in words is "forty million, four hundred forty-nine thousand, five hundred twenty-eight".