1611074740 has 48 divisors (see below), whose sum is σ = 3701577600. Its totient is φ = 584138880.

The previous prime is 1611074701. The next prime is 1611074753. The reversal of 1611074740 is 474701161.

1611074740 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66289 + ... + 87271.

It is an arithmetic number, because the mean of its divisors is an integer number (77116200).

Almost surely, 2^1611074740 is an apocalyptic number.

1611074740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1611074740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1850788800).

1611074740 is an abundant number, since it is smaller than the sum of its proper divisors (2090502860).

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

1611074740 is a wasteful number, since it uses less digits than its factorization.

1611074740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352 (or 21350 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 1611074740 is about 40138.1955249610. The cubic root of 1611074740 is about 1172.2994542461.

The spelling of 1611074740 in words is "one billion, six hundred eleven million, seventy-four thousand, seven hundred forty".