450981556 has 24 divisors (see below), whose sum is σ = 805239680. Its totient is φ = 220948992.

The previous prime is 450981547. The next prime is 450981571. The reversal of 450981556 is 655189054.

It is a super-2 number, since 2×450981556² = 406768727704362272, 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, 47365 + ... + 56083.

Almost surely, 2^450981556 is an apocalyptic number.

It is an amenable number.

450981556 is a deficient number, since it is larger than the sum of its proper divisors (354258124).

450981556 is a wasteful number, since it uses less digits than its factorization.

450981556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 450981556 is about 21236.3263301354. The cubic root of 450981556 is about 766.8661949063.

The spelling of 450981556 in words is "four hundred fifty million, nine hundred eighty-one thousand, five hundred fifty-six".