421300402402 has 8 divisors (see below), whose sum is σ = 689400658512. Its totient is φ = 191500182900.

The previous prime is 421300402399. The next prime is 421300402417. The reversal of 421300402402 is 204204003124.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 19150018291 = 421300402402 / (4 + 2 + 1 + 3 + 0 + 0 + 4 + 0 + 2 + 4 + 0 + 2).

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, 9575009124 + ... + 9575009167.

It is an arithmetic number, because the mean of its divisors is an integer number (86175082314).

Almost surely, 2^421300402402 is an apocalyptic number.

421300402402 is a deficient number, since it is larger than the sum of its proper divisors (268100256110).

421300402402 is a wasteful number, since it uses less digits than its factorization.

421300402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150018304.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 421300402402 its reverse (204204003124), we get a palindrome (625504405526).

The spelling of 421300402402 in words is "four hundred twenty-one billion, three hundred million, four hundred two thousand, four hundred two".