40235402 has 4 divisors (see below), whose sum is σ = 60353106. Its totient is φ = 20117700.

The previous prime is 40235399. The next prime is 40235449. The reversal of 40235402 is 20453204.

40235402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23921881 + 16313521 = 4891^2 + 4039^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058849 + ... + 10058852.

Almost surely, 2^40235402 is an apocalyptic number.

40235402 is a deficient number, since it is larger than the sum of its proper divisors (20117704).

40235402 is a wasteful number, since it uses less digits than its factorization.

40235402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20117703.

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

The square root of 40235402 is about 6343.1381823195. The cubic root of 40235402 is about 342.6647638180.

Adding to 40235402 its reverse (20453204), we get a palindrome (60688606).

The spelling of 40235402 in words is "forty million, two hundred thirty-five thousand, four hundred two".