421050454 has 16 divisors (see below), whose sum is σ = 707614416. Its totient is φ = 186213600.

The previous prime is 421050439. The next prime is 421050479. The reversal of 421050454 is 454050124.

It is a happy number.

It is a super-2 number, since 2×421050454² = 354566969627212232, 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 7 ways as a sum of consecutive naturals, for example, 257817 + ... + 259444.

It is an arithmetic number, because the mean of its divisors is an integer number (44225901).

Almost surely, 2^421050454 is an apocalyptic number.

421050454 is a deficient number, since it is larger than the sum of its proper divisors (286563962).

421050454 is a wasteful number, since it uses less digits than its factorization.

421050454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517311.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 421050454 is about 20519.5139805991. The cubic root of 421050454 is about 749.5110614696.

The spelling of 421050454 in words is "four hundred twenty-one million, fifty thousand, four hundred fifty-four".