420461427 has 4 divisors (see below), whose sum is σ = 560615240. Its totient is φ = 280307616.

The previous prime is 420461423. The next prime is 420461441. The reversal of 420461427 is 724164024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 420461427 - 2² = 420461423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420461394 and 420461403.

It is not an unprimeable number, because it can be changed into a prime (420461423) 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, 70076902 + ... + 70076907.

It is an arithmetic number, because the mean of its divisors is an integer number (140153810).

Almost surely, 2^420461427 is an apocalyptic number.

420461427 is a deficient number, since it is larger than the sum of its proper divisors (140153813).

420461427 is a wasteful number, since it uses less digits than its factorization.

420461427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140153812.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 420461427 is about 20505.1561076720. The cubic root of 420461427 is about 749.1613897711.

The spelling of 420461427 in words is "four hundred twenty million, four hundred sixty-one thousand, four hundred twenty-seven".