40228042 has 4 divisors (see below), whose sum is σ = 60342066. Its totient is φ = 20114020.

The previous prime is 40227983. The next prime is 40228043. The reversal of 40228042 is 24082204.

40228042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33051001 + 7177041 = 5749^2 + 2679^2 .

It is not an unprimeable number, because it can be changed into a prime (40228043) 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 as a sum of consecutive naturals, namely, 10057009 + ... + 10057012.

Almost surely, 2^40228042 is an apocalyptic number.

40228042 is a deficient number, since it is larger than the sum of its proper divisors (20114024).

40228042 is a wasteful number, since it uses less digits than its factorization.

40228042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20114023.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 40228042 is about 6342.5580013115. The cubic root of 40228042 is about 342.6438687328.

The spelling of 40228042 in words is "forty million, two hundred twenty-eight thousand, forty-two".