40889328 has 40 divisors (see below), whose sum is σ = 106243200. Its totient is φ = 13550784.

The previous prime is 40889327. The next prime is 40889339. The reversal of 40889328 is 82398804.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40889328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40889327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6213 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (2656080).

Almost surely, 2^40889328 is an apocalyptic number.

40889328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40889328 is an abundant number, since it is smaller than the sum of its proper divisors (65353872).

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

40889328 is a wasteful number, since it uses less digits than its factorization.

40889328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949 (or 4943 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 40889328 is about 6394.4763663650. The cubic root of 40889328 is about 344.5111833989.

The spelling of 40889328 in words is "forty million, eight hundred eighty-nine thousand, three hundred twenty-eight".