40880128 has 24 divisors (see below), whose sum is σ = 81744390. Its totient is φ = 20439040.

The previous prime is 40880113. The next prime is 40880129. The reversal of 40880128 is 82108804.

It can be written as a sum of positive squares in only one way, i.e., 25887744 + 14992384 = 5088^2 + 3872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40880128.

It is not an unprimeable number, because it can be changed into a prime (40880129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7933 + ... + 12028.

Almost surely, 2^40880128 is an apocalyptic number.

It is an amenable number.

40880128 is a deficient number, since it is larger than the sum of its proper divisors (40864262).

40880128 is an equidigital number, since it uses as much as digits as its factorization.

40880128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19983 (or 19963 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 40880128 is about 6393.7569550304. The cubic root of 40880128 is about 344.4853433996.

The spelling of 40880128 in words is "forty million, eight hundred eighty thousand, one hundred twenty-eight".