40433420 has 12 divisors (see below), whose sum is σ = 84910224. Its totient is φ = 16173360.

The previous prime is 40433401. The next prime is 40433443. The reversal of 40433420 is 2433404.

It is a happy number.

40433420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40433420² = 3269722905792800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2021671 = 40433420 / (4 + 0 + 4 + 3 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 40433392 and 40433401.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1010816 + ... + 1010855.

It is an arithmetic number, because the mean of its divisors is an integer number (7075852).

Almost surely, 2^40433420 is an apocalyptic number.

It is an amenable number.

40433420 is an abundant number, since it is smaller than the sum of its proper divisors (44476804).

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

40433420 is a wasteful number, since it uses less digits than its factorization.

40433420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021680 (or 2021678 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40433420 is about 6358.7278601934. The cubic root of 40433420 is about 343.2259841807.

Adding to 40433420 its reverse (2433404), we get a palindrome (42866824).

The spelling of 40433420 in words is "forty million, four hundred thirty-three thousand, four hundred twenty".