40428553 has 8 divisors (see below), whose sum is σ = 44636256. Its totient is φ = 36309600.

The previous prime is 40428551. The next prime is 40428569. The reversal of 40428553 is 35582404.

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 40428553 - 2¹ = 40428551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40428551) 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, 21228 + ... + 23053.

It is an arithmetic number, because the mean of its divisors is an integer number (5579532).

Almost surely, 2^40428553 is an apocalyptic number.

It is an amenable number.

40428553 is a deficient number, since it is larger than the sum of its proper divisors (4207703).

40428553 is a wasteful number, since it uses less digits than its factorization.

40428553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44375.

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

The square root of 40428553 is about 6358.3451463411. The cubic root of 40428553 is about 343.2122121748.

The spelling of 40428553 in words is "forty million, four hundred twenty-eight thousand, five hundred fifty-three".