40428401 has 8 divisors (see below), whose sum is σ = 43807680. Its totient is φ = 37087632.

The previous prime is 40428391. The next prime is 40428439. The reversal of 40428401 is 10482404.

40428401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40428401 - 2¹⁴ = 40412017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40428461) 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, 7421 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (5475960).

Almost surely, 2^40428401 is an apocalyptic number.

It is an amenable number.

40428401 is a deficient number, since it is larger than the sum of its proper divisors (3379279).

40428401 is a wasteful number, since it uses less digits than its factorization.

40428401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19255.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 40428401 is about 6358.3331935343. Note that the first 3 decimals coincide. The cubic root of 40428401 is about 343.2117820471.

The spelling of 40428401 in words is "forty million, four hundred twenty-eight thousand, four hundred one".