420550254 has 12 divisors (see below), whose sum is σ = 911192256. Its totient is φ = 140183412.

The previous prime is 420550241. The next prime is 420550261. The reversal of 420550254 is 452055024.

It is a super-2 number, since 2×420550254² = 353725032278929032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11681934 + ... + 11681969.

It is an arithmetic number, because the mean of its divisors is an integer number (75932688).

Almost surely, 2^420550254 is an apocalyptic number.

420550254 is an abundant number, since it is smaller than the sum of its proper divisors (490642002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420550254 is a wasteful number, since it uses less digits than its factorization.

420550254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23363911 (or 23363908 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 420550254 is about 20507.3219607047. The cubic root of 420550254 is about 749.2141421909.

The spelling of 420550254 in words is "four hundred twenty million, five hundred fifty thousand, two hundred fifty-four".