421202998730 has 8 divisors (see below), whose sum is σ = 758165397732. Its totient is φ = 168481199488.

The previous prime is 421202998721. The next prime is 421202998807. The reversal of 421202998730 is 37899202124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 415946313721 + 5256685009 = 644939^2 + 72503^2 .

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

It is a super-2 number, since 2×421202998730² (a number of 24 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 in 3 ways as a sum of consecutive naturals, for example, 21060149927 + ... + 21060149946.

Almost surely, 2^421202998730 is an apocalyptic number.

421202998730 is a deficient number, since it is larger than the sum of its proper divisors (336962399002).

421202998730 is a wasteful number, since it uses less digits than its factorization.

421202998730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42120299880.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 421202998730 in words is "four hundred twenty-one billion, two hundred two million, nine hundred ninety-eight thousand, seven hundred thirty".