421153454 has 16 divisors (see below), whose sum is σ = 640595088. Its totient is φ = 207631872.

The previous prime is 421153441. The next prime is 421153471. The reversal of 421153454 is 454351124.

It is a super-2 number, since 2×421153454² = 354740463632260232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93584 + ... + 97980.

It is an arithmetic number, because the mean of its divisors is an integer number (40037193).

Almost surely, 2^421153454 is an apocalyptic number.

421153454 is a deficient number, since it is larger than the sum of its proper divisors (219441634).

421153454 is a wasteful number, since it uses less digits than its factorization.

421153454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059.

The product of its digits is 9600, while the sum is 29.

The square root of 421153454 is about 20522.0236331605. The cubic root of 421153454 is about 749.5721731839.

The spelling of 421153454 in words is "four hundred twenty-one million, one hundred fifty-three thousand, four hundred fifty-four".