420162254 has 4 divisors (see below), whose sum is σ = 630243384. Its totient is φ = 210081126.

The previous prime is 420162241. The next prime is 420162271. The reversal of 420162254 is 452261024.

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

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105040562 + ... + 105040565.

It is an arithmetic number, because the mean of its divisors is an integer number (157560846).

Almost surely, 2^420162254 is an apocalyptic number.

420162254 is a deficient number, since it is larger than the sum of its proper divisors (210081130).

420162254 is a wasteful number, since it uses less digits than its factorization.

420162254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210081129.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 420162254 is about 20497.8597419340. The cubic root of 420162254 is about 748.9836627744.

The spelling of 420162254 in words is "four hundred twenty million, one hundred sixty-two thousand, two hundred fifty-four".