40218202 has 8 divisors (see below), whose sum is σ = 61465716. Its totient is φ = 19729632.

The previous prime is 40218181. The next prime is 40218247. The reversal of 40218202 is 20281204.

It can be written as a sum of positive squares in 2 ways, for example, as 39200121 + 1018081 = 6261^2 + 1009^2 .

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

It is a super-2 number, since 2×40218202² = 3235007544225608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40218202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189603 + ... + 189814.

Almost surely, 2^40218202 is an apocalyptic number.

40218202 is a deficient number, since it is larger than the sum of its proper divisors (21247514).

40218202 is a wasteful number, since it uses less digits than its factorization.

40218202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379472.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40218202 is about 6341.7822416100. The cubic root of 40218202 is about 342.6159289306.

Adding to 40218202 its reverse (20281204), we get a palindrome (60499406).

The spelling of 40218202 in words is "forty million, two hundred eighteen thousand, two hundred two".