40328780 has 12 divisors (see below), whose sum is σ = 84690480. Its totient is φ = 16131504.

The previous prime is 40328767. The next prime is 40328803. The reversal of 40328780 is 8782304.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008200 + ... + 1008239.

It is an arithmetic number, because the mean of its divisors is an integer number (7057540).

Almost surely, 2^40328780 is an apocalyptic number.

It is an amenable number.

40328780 is an abundant number, since it is smaller than the sum of its proper divisors (44361700).

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

40328780 is a wasteful number, since it uses less digits than its factorization.

40328780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016448 (or 2016446 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40328780 is about 6350.4944689370. The cubic root of 40328780 is about 342.9296435634.

The spelling of 40328780 in words is "forty million, three hundred twenty-eight thousand, seven hundred eighty".