613540428 has 24 divisors (see below), whose sum is σ = 1432059888. Its totient is φ = 204446976.

The previous prime is 613540337. The next prime is 613540453. The reversal of 613540428 is 824045316.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42600 + ... + 55152.

It is an arithmetic number, because the mean of its divisors is an integer number (59669162).

Almost surely, 2^613540428 is an apocalyptic number.

It is an amenable number.

613540428 is an abundant number, since it is smaller than the sum of its proper divisors (818519460).

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

613540428 is a wasteful number, since it uses less digits than its factorization.

613540428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16633 (or 16631 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 613540428 is about 24769.7482425640. The cubic root of 613540428 is about 849.7302156500.

The spelling of 613540428 in words is "six hundred thirteen million, five hundred forty thousand, four hundred twenty-eight".