1613648274 has 64 divisors (see below), whose sum is σ = 3776274432. Its totient is φ = 450100800.

The previous prime is 1613648269. The next prime is 1613648297. The reversal of 1613648274 is 4728463161.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067179 + ... + 1068689.

It is an arithmetic number, because the mean of its divisors is an integer number (59004288).

Almost surely, 2^1613648274 is an apocalyptic number.

1613648274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613648274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888137216).

1613648274 is an abundant number, since it is smaller than the sum of its proper divisors (2162626158).

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

1613648274 is a wasteful number, since it uses less digits than its factorization.

1613648274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its digits is 193536, while the sum is 42.

The square root of 1613648274 is about 40170.2411493882. The cubic root of 1613648274 is about 1172.9233333301.

The spelling of 1613648274 in words is "one billion, six hundred thirteen million, six hundred forty-eight thousand, two hundred seventy-four".