420500454 has 32 divisors (see below), whose sum is σ = 918186624. Its totient is φ = 127322880.

The previous prime is 420500413. The next prime is 420500497. The reversal of 420500454 is 454005024.

It is a super-2 number, since 2×420500454² = 353641263628412232, 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 15 ways as a sum of consecutive naturals, for example, 148617 + ... + 151419.

It is an arithmetic number, because the mean of its divisors is an integer number (28693332).

Almost surely, 2^420500454 is an apocalyptic number.

420500454 is an abundant number, since it is smaller than the sum of its proper divisors (497686170).

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

420500454 is a wasteful number, since it uses less digits than its factorization.

420500454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

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

The square root of 420500454 is about 20506.1077242855. The cubic root of 420500454 is about 749.1845679710.

Adding to 420500454 its reverse (454005024), we get a palindrome (874505478).

The spelling of 420500454 in words is "four hundred twenty million, five hundred thousand, four hundred fifty-four".