730878534 has 12 divisors (see below), whose sum is σ = 1583570196. Its totient is φ = 243626172.

The previous prime is 730878527. The next prime is 730878553. The reversal of 730878534 is 435878037.

730878534 is a `hidden beast` number, since 7 + 30 + 87 + 8 + 534 = 666.

It is a super-3 number, since 3×730878534³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 730878534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20302164 + ... + 20302199.

It is an arithmetic number, because the mean of its divisors is an integer number (131964183).

Almost surely, 2^730878534 is an apocalyptic number.

730878534 is an abundant number, since it is smaller than the sum of its proper divisors (852691662).

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

730878534 is a wasteful number, since it uses less digits than its factorization.

730878534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40604371 (or 40604368 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 730878534 is about 27034.7652847218. The cubic root of 730878534 is about 900.7723961853.

The spelling of 730878534 in words is "seven hundred thirty million, eight hundred seventy-eight thousand, five hundred thirty-four".