706478490 has 64 divisors (see below), whose sum is σ = 1891296000. Its totient is φ = 187659072.

The previous prime is 706478477. The next prime is 706478497. The reversal of 706478490 is 94874607.

It is a super-2 number, since 2×706478490² = 998223713665360200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (706478497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66036 + ... + 75984.

It is an arithmetic number, because the mean of its divisors is an integer number (29551500).

Almost surely, 2^706478490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706478490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945648000).

706478490 is an abundant number, since it is smaller than the sum of its proper divisors (1184817510).

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

706478490 is a wasteful number, since it uses less digits than its factorization.

706478490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228 (or 10222 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 706478490 is about 26579.6630904156. The cubic root of 706478490 is about 890.6347741864.

The spelling of 706478490 in words is "seven hundred six million, four hundred seventy-eight thousand, four hundred ninety".