40223535 has 32 divisors (see below), whose sum is σ = 70495488. Its totient is φ = 19422720.

The previous prime is 40223509. The next prime is 40223537. The reversal of 40223535 is 53532204.

It is not a de Polignac number, because 40223535 - 2⁶ = 40223471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71164 + ... + 71726.

It is an arithmetic number, because the mean of its divisors is an integer number (2202984).

Almost surely, 2^40223535 is an apocalyptic number.

40223535 is a deficient number, since it is larger than the sum of its proper divisors (30271953).

40223535 is a wasteful number, since it uses less digits than its factorization.

40223535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 40223535 is about 6342.2026930712. The cubic root of 40223535 is about 342.6310720739.

Adding to 40223535 its reverse (53532204), we get a palindrome (93755739).

It can be divided in two parts, 4022 and 3535, that added together give a palindrome (7557).

The spelling of 40223535 in words is "forty million, two hundred twenty-three thousand, five hundred thirty-five".