40220435 has 32 divisors (see below), whose sum is σ = 52876800. Its totient is φ = 29272320.

The previous prime is 40220407. The next prime is 40220441. The reversal of 40220435 is 53402204.

It is not a de Polignac number, because 40220435 - 2¹⁰ = 40219411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451871 + ... + 451959.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^40220435 is an apocalyptic number.

40220435 is a deficient number, since it is larger than the sum of its proper divisors (12656365).

40220435 is a wasteful number, since it uses less digits than its factorization.

40220435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40220435 is about 6341.9582937765. The cubic root of 40220435 is about 342.6222697346.

Adding to 40220435 its reverse (53402204), we get a palindrome (93622639).

The spelling of 40220435 in words is "forty million, two hundred twenty thousand, four hundred thirty-five".