40820050402 has 8 divisors (see below), whose sum is σ = 61411768236. Its totient is φ = 20349460992.

The previous prime is 40820050393. The next prime is 40820050499. The reversal of 40820050402 is 20405002804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40132509561 + 687540841 = 200331^2 + 26221^2 .

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

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, 30281263 + ... + 30282610.

Almost surely, 2^40820050402 is an apocalyptic number.

40820050402 is a deficient number, since it is larger than the sum of its proper divisors (20591717834).

40820050402 is a wasteful number, since it uses less digits than its factorization.

40820050402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60564212.

The product of its (nonzero) digits is 2560, while the sum is 25.

The spelling of 40820050402 in words is "forty billion, eight hundred twenty million, fifty thousand, four hundred two".