705470490 has 192 divisors, whose sum is σ = 2011156992. Its totient is φ = 171072000.

The previous prime is 705470483. The next prime is 705470543. The reversal of 705470490 is 94074507.

It is a happy number.

705470490 is a `hidden beast` number, since 70 + 547 + 0 + 49 + 0 = 666.

It is a super-2 number, since 2×705470490² = 995377224521680200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4671915 + ... + 4672065.

It is an arithmetic number, because the mean of its divisors is an integer number (10474776).

Almost surely, 2^705470490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 705470490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005578496).

705470490 is an abundant number, since it is smaller than the sum of its proper divisors (1305686502).

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

705470490 is a wasteful number, since it uses less digits than its factorization.

705470490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 705470490 is about 26560.6944562826. The cubic root of 705470490 is about 890.2109881467.

The spelling of 705470490 in words is "seven hundred five million, four hundred seventy thousand, four hundred ninety".