40069008 has 120 divisors (see below), whose sum is σ = 129579008. Its totient is φ = 11321856.

The previous prime is 40068979. The next prime is 40069021. The reversal of 40069008 is 80096004.

It is a super-3 number, since 3×40069008³ (a number of 24 digits) contains 333 as substring.

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, 127860 + ... + 128172.

Almost surely, 2^40069008 is an apocalyptic number.

40069008 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 40069008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64789504).

40069008 is an abundant number, since it is smaller than the sum of its proper divisors (89510000).

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

40069008 is a wasteful number, since it uses less digits than its factorization.

40069008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40069008 is about 6330.0085307999. The cubic root of 40069008 is about 342.1917463788.

The spelling of 40069008 in words is "forty million, sixty-nine thousand, eight".