420115277 has 4 divisors (see below), whose sum is σ = 424041696. Its totient is φ = 416188860.

The previous prime is 420115273. The next prime is 420115291. The reversal of 420115277 is 772511024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420115277 - 2² = 420115273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420115273) 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, 1963049 + ... + 1963262.

It is an arithmetic number, because the mean of its divisors is an integer number (106010424).

Almost surely, 2^420115277 is an apocalyptic number.

It is an amenable number.

420115277 is a deficient number, since it is larger than the sum of its proper divisors (3926419).

420115277 is a wasteful number, since it uses less digits than its factorization.

420115277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926418.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 420115277 is about 20496.7138097794. The cubic root of 420115277 is about 748.9557479101.

The spelling of 420115277 in words is "four hundred twenty million, one hundred fifteen thousand, two hundred seventy-seven".