421431315 has 8 divisors (see below), whose sum is σ = 674290128. Its totient is φ = 224763360.

The previous prime is 421431301. The next prime is 421431331. The reversal of 421431315 is 513134124.

It is a happy number.

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

It is not a de Polignac number, because 421431315 - 2⁹ = 421430803 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14047696 + ... + 14047725.

It is an arithmetic number, because the mean of its divisors is an integer number (84286266).

Almost surely, 2^421431315 is an apocalyptic number.

421431315 is a deficient number, since it is larger than the sum of its proper divisors (252858813).

421431315 is a wasteful number, since it uses less digits than its factorization.

421431315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28095429.

The product of its digits is 1440, while the sum is 24.

The square root of 421431315 is about 20528.7923414895. The cubic root of 421431315 is about 749.7369833293.

Adding to 421431315 its reverse (513134124), we get a palindrome (934565439).

The spelling of 421431315 in words is "four hundred twenty-one million, four hundred thirty-one thousand, three hundred fifteen".