613309740 has 48 divisors (see below), whose sum is σ = 1807653120. Its totient is φ = 154941120.

The previous prime is 613309717. The next prime is 613309747. The reversal of 613309740 is 47903316.

It is a super-2 number, since 2×613309740² = 752297674357735200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613309747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267856 + ... + 270135.

It is an arithmetic number, because the mean of its divisors is an integer number (37659440).

Almost surely, 2^613309740 is an apocalyptic number.

613309740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613309740 is an abundant number, since it is smaller than the sum of its proper divisors (1194343380).

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

613309740 is a wasteful number, since it uses less digits than its factorization.

613309740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538022 (or 538020 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 613309740 is about 24765.0911567069. The cubic root of 613309740 is about 849.6237042570.

The spelling of 613309740 in words is "six hundred thirteen million, three hundred nine thousand, seven hundred forty".