40069936 has 40 divisors (see below), whose sum is σ = 82695600. Its totient is φ = 18754560.

The previous prime is 40069921. The next prime is 40069943. The reversal of 40069936 is 63996004.

It is a junction number, because it is equal to n+sod(n) for n = 40069895 and 40069904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26316 + ... + 27796.

It is an arithmetic number, because the mean of its divisors is an integer number (2067390).

Almost surely, 2^40069936 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 40069936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41347800).

40069936 is an abundant number, since it is smaller than the sum of its proper divisors (42625664).

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

40069936 is a wasteful number, since it uses less digits than its factorization.

40069936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 40069936 is about 6330.0818320145. The cubic root of 40069936 is about 342.1943880837.

The spelling of 40069936 in words is "forty million, sixty-nine thousand, nine hundred thirty-six".