40013435 has 32 divisors (see below), whose sum is σ = 61281792. Its totient is φ = 24353280.

The previous prime is 40013431. The next prime is 40013447. The reversal of 40013435 is 53431004.

It is not a de Polignac number, because 40013435 - 2² = 40013431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40013431) 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, 15347 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (1915056).

Almost surely, 2^40013435 is an apocalyptic number.

40013435 is a deficient number, since it is larger than the sum of its proper divisors (21268357).

40013435 is a wasteful number, since it uses less digits than its factorization.

40013435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40013435 is about 6325.6173611751. The cubic root of 40013435 is about 342.0334742607.

Adding to 40013435 its reverse (53431004), we get a palindrome (93444439).

Subtracting 40013435 from its reverse (53431004), we obtain a square (13417569 = 3663²).

The spelling of 40013435 in words is "forty million, thirteen thousand, four hundred thirty-five".