420315 has 16 divisors (see below), whose sum is σ = 768768. Its totient is φ = 192096.

The previous prime is 420313. The next prime is 420317. The reversal of 420315 is 513024.

It is an interprime number because it is at equal distance from previous prime (420313) and next prime (420317).

It is not a de Polignac number, because 420315 - 2¹ = 420313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 420294 and 420303.

It is not an unprimeable number, because it can be changed into a prime (420313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (48048).

2⁴²⁰³¹⁵ is an apocalyptic number.

420315 is a deficient number, since it is larger than the sum of its proper divisors (348453).

420315 is a wasteful number, since it uses less digits than its factorization.

420315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 420315 is about 648.3170520663. The cubic root of 420315 is about 74.9074413746.

Adding to 420315 its reverse (513024), we get a palindrome (933339).

The spelling of 420315 in words is "four hundred twenty thousand, three hundred fifteen".