40360728 has 32 divisors (see below), whose sum is σ = 103365360. Its totient is φ = 13125120.

The previous prime is 40360717. The next prime is 40360753. The reversal of 40360728 is 82706304.

It is a junction number, because it is equal to n+sod(n) for n = 40360695 and 40360704.

It is a congruent number.

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, 19525 + ... + 21492.

Almost surely, 2^40360728 is an apocalyptic number.

It is an amenable number.

40360728 is an abundant number, since it is smaller than the sum of its proper divisors (63004632).

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

40360728 is a wasteful number, since it uses less digits than its factorization.

40360728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41067 (or 41063 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40360728 is about 6353.0093656471. The cubic root of 40360728 is about 343.0201746471.

The spelling of 40360728 in words is "forty million, three hundred sixty thousand, seven hundred twenty-eight".