40208404202 has 4 divisors (see below), whose sum is σ = 60312606306. Its totient is φ = 20104202100.

The previous prime is 40208404189. The next prime is 40208404211. The reversal of 40208404202 is 20240480204.

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., 39458246881 + 750157321 = 198641^2 + 27389^2 .

It is a super-2 number, since 2×40208404202² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052101049 + ... + 10052101052.

Almost surely, 2^40208404202 is an apocalyptic number.

40208404202 is a deficient number, since it is larger than the sum of its proper divisors (20104202104).

40208404202 is a wasteful number, since it uses less digits than its factorization.

40208404202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20104202103.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 40208404202 its reverse (20240480204), we get a palindrome (60448884406).

The spelling of 40208404202 in words is "forty billion, two hundred eight million, four hundred four thousand, two hundred two".