40646200402 has 4 divisors (see below), whose sum is σ = 60969300606. Its totient is φ = 20323100200.

The previous prime is 40646200363. The next prime is 40646200417. The reversal of 40646200402 is 20400264604.

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., 36638170921 + 4008029481 = 191411^2 + 63309^2 .

It is a super-2 number, since 2×40646200402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161550099 + ... + 10161550102.

Almost surely, 2^40646200402 is an apocalyptic number.

40646200402 is a deficient number, since it is larger than the sum of its proper divisors (20323100204).

40646200402 is a wasteful number, since it uses less digits than its factorization.

40646200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20323100203.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 40646200402 in words is "forty billion, six hundred forty-six million, two hundred thousand, four hundred two".