705561540 has 48 divisors (see below), whose sum is σ = 2091785472. Its totient is φ = 177081856.

The previous prime is 705561529. The next prime is 705561551. The reversal of 705561540 is 45165507.

It is an interprime number because it is at equal distance from previous prime (705561529) and next prime (705561551).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 344844 + ... + 346883.

It is an arithmetic number, because the mean of its divisors is an integer number (43578864).

Almost surely, 2^705561540 is an apocalyptic number.

It is an amenable number.

705561540 is an abundant number, since it is smaller than the sum of its proper divisors (1386223932).

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

705561540 is a wasteful number, since it uses less digits than its factorization.

705561540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691756 (or 691754 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 705561540 is about 26562.4083998421. The cubic root of 705561540 is about 890.2492842081.

The spelling of 705561540 in words is "seven hundred five million, five hundred sixty-one thousand, five hundred forty".