421900353 has 32 divisors (see below), whose sum is σ = 716083200. Its totient is φ = 240493968.

The previous prime is 421900337. The next prime is 421900357. The reversal of 421900353 is 353009124.

It is not a de Polignac number, because 421900353 - 2⁴ = 421900337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (421900357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81208 + ... + 86246.

It is an arithmetic number, because the mean of its divisors is an integer number (22377600).

Almost surely, 2^421900353 is an apocalyptic number.

It is an amenable number.

421900353 is a deficient number, since it is larger than the sum of its proper divisors (294182847).

421900353 is a wasteful number, since it uses less digits than its factorization.

421900353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498 (or 5492 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 421900353 is about 20540.2130709494. The cubic root of 421900353 is about 750.0150236990.

Adding to 421900353 its reverse (353009124), we get a palindrome (774909477).

The spelling of 421900353 in words is "four hundred twenty-one million, nine hundred thousand, three hundred fifty-three".