981340458 has 32 divisors (see below), whose sum is σ = 2247262080. Its totient is φ = 279858240.

The previous prime is 981340447. The next prime is 981340463. The reversal of 981340458 is 854043189.

981340458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128 + ... + 44316.

It is an arithmetic number, because the mean of its divisors is an integer number (70226940).

Almost surely, 2^981340458 is an apocalyptic number.

981340458 is an abundant number, since it is smaller than the sum of its proper divisors (1265921622).

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

981340458 is a wasteful number, since it uses less digits than its factorization.

981340458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43742.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 981340458 is about 31326.3540489473. The cubic root of 981340458 is about 993.7410600675.

The spelling of 981340458 in words is "nine hundred eighty-one million, three hundred forty thousand, four hundred fifty-eight".