421403115 has 16 divisors (see below), whose sum is σ = 770565888. Its totient is φ = 192641376.

The previous prime is 421403093. The next prime is 421403137. The reversal of 421403115 is 511304124.

It is an interprime number because it is at equal distance from previous prime (421403093) and next prime (421403137).

It is not a de Polignac number, because 421403115 - 2¹³ = 421394923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 421403091 and 421403100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2006577 + ... + 2006786.

It is an arithmetic number, because the mean of its divisors is an integer number (48160368).

Almost surely, 2^421403115 is an apocalyptic number.

421403115 is a deficient number, since it is larger than the sum of its proper divisors (349162773).

421403115 is a wasteful number, since it uses less digits than its factorization.

421403115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013378.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 421403115 is about 20528.1054897913. The cubic root of 421403115 is about 749.7202601182.

Adding to 421403115 its reverse (511304124), we get a palindrome (932707239).

The spelling of 421403115 in words is "four hundred twenty-one million, four hundred three thousand, one hundred fifteen".