454021630 has 16 divisors (see below), whose sum is σ = 817532640. Its totient is φ = 181543392.

The previous prime is 454021627. The next prime is 454021639. The reversal of 454021630 is 36120454.

It is a super-2 number, since 2×454021630² = 412271281015713800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 454021595 and 454021604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454021639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29212 + ... + 41968.

It is an arithmetic number, because the mean of its divisors is an integer number (51095790).

Almost surely, 2^454021630 is an apocalyptic number.

454021630 is a deficient number, since it is larger than the sum of its proper divisors (363511010).

454021630 is a wasteful number, since it uses less digits than its factorization.

454021630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16323.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 454021630 is about 21307.7833197168. The cubic root of 454021630 is about 768.5854899042.

The spelling of 454021630 in words is "four hundred fifty-four million, twenty-one thousand, six hundred thirty".