420250254 has 16 divisors (see below), whose sum is σ = 842043648. Its totient is φ = 139826232.

The previous prime is 420250249. The next prime is 420250261. The reversal of 420250254 is 452052024.

It is a happy number.

It is a super-2 number, since 2×420250254² = 353220551974129032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60742 + ... + 67305.

It is an arithmetic number, because the mean of its divisors is an integer number (52627728).

Almost surely, 2^420250254 is an apocalyptic number.

420250254 is an abundant number, since it is smaller than the sum of its proper divisors (421793394).

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

420250254 is a wasteful number, since it uses less digits than its factorization.

420250254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128599.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 420250254 is about 20500.0061951210. The cubic root of 420250254 is about 749.0359488938.

The spelling of 420250254 in words is "four hundred twenty million, two hundred fifty thousand, two hundred fifty-four".