40464528 has 80 divisors (see below), whose sum is σ = 118534080. Its totient is φ = 11791872.

The previous prime is 40464503. The next prime is 40464553. The reversal of 40464528 is 82546404.

It is an interprime number because it is at equal distance from previous prime (40464503) and next prime (40464553).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10150 + ... + 13562.

It is an arithmetic number, because the mean of its divisors is an integer number (1481676).

Almost surely, 2^40464528 is an apocalyptic number.

40464528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40464528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59267040).

40464528 is an abundant number, since it is smaller than the sum of its proper divisors (78069552).

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

40464528 is a wasteful number, since it uses less digits than its factorization.

40464528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456 (or 3450 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 40464528 is about 6361.1734766472. The cubic root of 40464528 is about 343.3139834719.

The spelling of 40464528 in words is "forty million, four hundred sixty-four thousand, five hundred twenty-eight".