611234540 has 24 divisors (see below), whose sum is σ = 1466963232. Its totient is φ = 209566080.

The previous prime is 611234489. The next prime is 611234573. The reversal of 611234540 is 45432116.

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, 2182841 + ... + 2183120.

It is an arithmetic number, because the mean of its divisors is an integer number (61123468).

Almost surely, 2^611234540 is an apocalyptic number.

It is an amenable number.

611234540 is an abundant number, since it is smaller than the sum of its proper divisors (855728692).

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

611234540 is a wasteful number, since it uses less digits than its factorization.

611234540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365977 (or 4365975 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 611234540 is about 24723.1579698064. The cubic root of 611234540 is about 848.6643567837.

Adding to 611234540 its reverse (45432116), we get a palindrome (656666656).

The spelling of 611234540 in words is "six hundred eleven million, two hundred thirty-four thousand, five hundred forty".