40428294 has 16 divisors (see below), whose sum is σ = 82382832. Its totient is φ = 13221728.

The previous prime is 40428293. The next prime is 40428301. The reversal of 40428294 is 49282404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40428293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63249 + ... + 63884.

It is an arithmetic number, because the mean of its divisors is an integer number (5148927).

Almost surely, 2^40428294 is an apocalyptic number.

40428294 is an abundant number, since it is smaller than the sum of its proper divisors (41954538).

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

40428294 is a wasteful number, since it uses less digits than its factorization.

40428294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127191.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 40428294 is about 6358.3247793739. The cubic root of 40428294 is about 343.2114792592.

The spelling of 40428294 in words is "forty million, four hundred twenty-eight thousand, two hundred ninety-four".