1611442272 has 48 divisors (see below), whose sum is σ = 4614587712. Its totient is φ = 488315520.

The previous prime is 1611442271. The next prime is 1611442289. The reversal of 1611442272 is 2722441161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611442271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761938 + ... + 764049.

It is an arithmetic number, because the mean of its divisors is an integer number (96137244).

Almost surely, 2^1611442272 is an apocalyptic number.

1611442272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1611442272 is an abundant number, since it is smaller than the sum of its proper divisors (3003145440).

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

1611442272 is a wasteful number, since it uses less digits than its factorization.

1611442272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526011 (or 1526003 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 1611442272 is about 40142.7735962527. The cubic root of 1611442272 is about 1172.3885924246.

The spelling of 1611442272 in words is "one billion, six hundred eleven million, four hundred forty-two thousand, two hundred seventy-two".