613400528 has 40 divisors (see below), whose sum is σ = 1355178888. Its totient is φ = 266452992.

The previous prime is 613400527. The next prime is 613400533. The reversal of 613400528 is 825004316.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 612463504 = 968^2 + 24748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 613400528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613400527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83201 + ... + 90272.

Almost surely, 2^613400528 is an apocalyptic number.

613400528 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

613400528 is an abundant number, since it is smaller than the sum of its proper divisors (741778360).

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

613400528 is a wasteful number, since it uses less digits than its factorization.

613400528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173511 (or 173505 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 613400528 is about 24766.9240722380. The cubic root of 613400528 is about 849.6656253430.

The spelling of 613400528 in words is "six hundred thirteen million, four hundred thousand, five hundred twenty-eight".