40454128 has 40 divisors (see below), whose sum is σ = 92087856. Its totient is φ = 16972800.

The previous prime is 40454123. The next prime is 40454129. The reversal of 40454128 is 82145404.

40454128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40454096 and 40454105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6553 + ... + 11128.

Almost surely, 2^40454128 is an apocalyptic number.

It is an amenable number.

40454128 is an abundant number, since it is smaller than the sum of its proper divisors (51633728).

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

40454128 is a wasteful number, since it uses less digits than its factorization.

40454128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17713 (or 17707 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 40454128 is about 6360.3559648812. The cubic root of 40454128 is about 343.2845686441.

The spelling of 40454128 in words is "forty million, four hundred fifty-four thousand, one hundred twenty-eight".