40428355 has 8 divisors (see below), whose sum is σ = 52924464. Its totient is φ = 29402400.

The previous prime is 40428301. The next prime is 40428359. The reversal of 40428355 is 55382404.

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

It is a de Polignac number, because none of the positive numbers 2^k-40428355 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40428359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367476 + ... + 367585.

It is an arithmetic number, because the mean of its divisors is an integer number (6615558).

Almost surely, 2^40428355 is an apocalyptic number.

40428355 is a deficient number, since it is larger than the sum of its proper divisors (12496109).

40428355 is a wasteful number, since it uses less digits than its factorization.

40428355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735077.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 40428355 is about 6358.3295762331. The cubic root of 40428355 is about 343.2116518766.

The spelling of 40428355 in words is "forty million, four hundred twenty-eight thousand, three hundred fifty-five".