454143492 has 108 divisors (see below), whose sum is σ = 1272703068. Its totient is φ = 136435200.

The previous prime is 454143463. The next prime is 454143493. The reversal of 454143492 is 294341454.

It can be written as a sum of positive squares in 2 ways, for example, as 90326016 + 363817476 = 9504^2 + 19074^2 .

It is a super-2 number, since 2×454143492² = 412492622651908128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (454143493) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 596392 + ... + 597152.

Almost surely, 2^454143492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454143492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636351534).

454143492 is an abundant number, since it is smaller than the sum of its proper divisors (818559576).

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

454143492 is a wasteful number, since it uses less digits than its factorization.

454143492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 914 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 454143492 is about 21310.6426932648. The cubic root of 454143492 is about 768.6542479987.

The spelling of 454143492 in words is "four hundred fifty-four million, one hundred forty-three thousand, four hundred ninety-two".