40423435 has 16 divisors (see below), whose sum is σ = 52387776. Its totient is φ = 29766528.

The previous prime is 40423429. The next prime is 40423447. The reversal of 40423435 is 53432404.

It is a cyclic number.

It is not a de Polignac number, because 40423435 - 2¹⁵ = 40390667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31017 + ... + 32293.

It is an arithmetic number, because the mean of its divisors is an integer number (3274236).

Almost surely, 2^40423435 is an apocalyptic number.

40423435 is a deficient number, since it is larger than the sum of its proper divisors (11964341).

40423435 is a wasteful number, since it uses less digits than its factorization.

40423435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 40423435 is about 6357.9426703927. The cubic root of 40423435 is about 343.1977287293.

Adding to 40423435 its reverse (53432404), we get a palindrome (93855839).

The spelling of 40423435 in words is "forty million, four hundred twenty-three thousand, four hundred thirty-five".