40203402 has 32 divisors (see below), whose sum is σ = 88843392. Its totient is φ = 12063744.

The previous prime is 40203391. The next prime is 40203403. The reversal of 40203402 is 20430204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40203403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6223 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (2776356).

Almost surely, 2^40203402 is an apocalyptic number.

40203402 is an abundant number, since it is smaller than the sum of its proper divisors (48639990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40203402 is a wasteful number, since it uses less digits than its factorization.

40203402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17182.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40203402 is about 6340.6152698299. The cubic root of 40203402 is about 342.5738970676.

Adding to 40203402 its reverse (20430204), we get a palindrome (60633606).

The spelling of 40203402 in words is "forty million, two hundred three thousand, four hundred two".