420042275 has 12 divisors (see below), whose sum is σ = 532966632. Its totient is φ = 328218240.

The previous prime is 420042269. The next prime is 420042283. The reversal of 420042275 is 572240024.

It is not a de Polignac number, because 420042275 - 2⁶ = 420042211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194294 + ... + 196443.

It is an arithmetic number, because the mean of its divisors is an integer number (44413886).

Almost surely, 2^420042275 is an apocalyptic number.

420042275 is a deficient number, since it is larger than the sum of its proper divisors (112924357).

420042275 is a wasteful number, since it uses less digits than its factorization.

420042275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390790 (or 390785 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 420042275 is about 20494.9329103562. The cubic root of 420042275 is about 748.9123642344.

Adding to 420042275 its reverse (572240024), we get a palindrome (992282299).

The spelling of 420042275 in words is "four hundred twenty million, forty-two thousand, two hundred seventy-five".