8430454840 has 32 divisors (see below), whose sum is σ = 18988026480. Its totient is φ = 3368714752.

The previous prime is 8430454829. The next prime is 8430454841. The reversal of 8430454840 is 484540348.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8430454793 and 8430454802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8430454841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68782 + ... + 146941.

Almost surely, 2^8430454840 is an apocalyptic number.

It is an amenable number.

8430454840 is an abundant number, since it is smaller than the sum of its proper divisors (10557571640).

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

8430454840 is a wasteful number, since it uses less digits than its factorization.

8430454840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216711 (or 216707 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 40.

The square root of 8430454840 is about 91817.5083521656. The cubic root of 8430454840 is about 2035.2464322542.

The spelling of 8430454840 in words is "eight billion, four hundred thirty million, four hundred fifty-four thousand, eight hundred forty".