40420235 has 8 divisors (see below), whose sum is σ = 49536576. Its totient is φ = 31648000.

The previous prime is 40420231. The next prime is 40420241. The reversal of 40420235 is 53202404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40420235 - 2² = 40420231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40420231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85766 + ... + 86235.

It is an arithmetic number, because the mean of its divisors is an integer number (6192072).

Almost surely, 2^40420235 is an apocalyptic number.

40420235 is a deficient number, since it is larger than the sum of its proper divisors (9116341).

40420235 is a wasteful number, since it uses less digits than its factorization.

40420235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172053.

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

The square root of 40420235 is about 6357.6910116803. The cubic root of 40420235 is about 343.1886724173.

Adding to 40420235 its reverse (53202404), we get a palindrome (93622639).

The spelling of 40420235 in words is "forty million, four hundred twenty thousand, two hundred thirty-five".