40068528 has 20 divisors (see below), whose sum is σ = 103510488. Its totient is φ = 13356160.

The previous prime is 40068491. The next prime is 40068529. The reversal of 40068528 is 82586004.

It is not an unprimeable number, because it can be changed into a prime (40068529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417333 + ... + 417428.

Almost surely, 2^40068528 is an apocalyptic number.

40068528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40068528 is an abundant number, since it is smaller than the sum of its proper divisors (63441960).

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

40068528 is a wasteful number, since it uses less digits than its factorization.

40068528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834772 (or 834766 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 40068528 is about 6329.9706160455. The cubic root of 40068528 is about 342.1903799637.

The spelling of 40068528 in words is "forty million, sixty-eight thousand, five hundred twenty-eight".