613087380 has 60 divisors (see below), whose sum is σ = 1923282900. Its totient is φ = 163489536.

The previous prime is 613087369. The next prime is 613087417. The reversal of 613087380 is 83780316.

613087380 is a `hidden beast` number, since 613 + 0 + 8 + 7 + 38 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 402082704 + 211004676 = 20052^2 + 14526^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×613087380² = 751752271030528800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 187605 + ... + 190844.

It is an arithmetic number, because the mean of its divisors is an integer number (32054715).

Almost surely, 2^613087380 is an apocalyptic number.

613087380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613087380 is an abundant number, since it is smaller than the sum of its proper divisors (1310195520).

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

613087380 is a wasteful number, since it uses less digits than its factorization.

613087380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378470 (or 378459 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 613087380 is about 24760.6013658796. The cubic root of 613087380 is about 849.5210127181.

The spelling of 613087380 in words is "six hundred thirteen million, eighty-seven thousand, three hundred eighty".