421363451 has 4 divisors (see below), whose sum is σ = 421404912. Its totient is φ = 421321992.

The previous prime is 421363447. The next prime is 421363457. The reversal of 421363451 is 154363124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 421363451 - 2² = 421363447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421363457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6026 + ... + 29648.

It is an arithmetic number, because the mean of its divisors is an integer number (105351228).

Almost surely, 2^421363451 is an apocalyptic number.

421363451 is a deficient number, since it is larger than the sum of its proper divisors (41461).

421363451 is a wasteful number, since it uses less digits than its factorization.

421363451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41460.

The product of its digits is 8640, while the sum is 29.

The square root of 421363451 is about 20527.1393769322. The cubic root of 421363451 is about 749.6967372440.

The spelling of 421363451 in words is "four hundred twenty-one million, three hundred sixty-three thousand, four hundred fifty-one".