40642035 has 32 divisors (see below), whose sum is σ = 77552640. Its totient is φ = 17770368.

The previous prime is 40642003. The next prime is 40642037. The reversal of 40642035 is 53024604.

It is not a de Polignac number, because 40642035 - 2⁵ = 40642003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40641996 and 40642014.

It is not an unprimeable number, because it can be changed into a prime (40642037) 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, 6000 + ... + 10829.

It is an arithmetic number, because the mean of its divisors is an integer number (2423520).

Almost surely, 2^40642035 is an apocalyptic number.

40642035 is a deficient number, since it is larger than the sum of its proper divisors (36910605).

40642035 is a wasteful number, since it uses less digits than its factorization.

40642035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16867.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40642035 is about 6375.1105872761. The cubic root of 40642035 is about 343.8152598963.

Adding to 40642035 its reverse (53024604), we get a palindrome (93666639).

The spelling of 40642035 in words is "forty million, six hundred forty-two thousand, thirty-five".