1121694072 has 64 divisors (see below), whose sum is σ = 2950365600. Its totient is φ = 354908160.

The previous prime is 1121694059. The next prime is 1121694073. The reversal of 1121694072 is 2704961211.

It is a happy number.

1121694072 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121694073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21004 + ... + 51812.

Almost surely, 2^1121694072 is an apocalyptic number.

1121694072 is a gapful number since it is divisible by the number (12) 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 1121694072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475182800).

1121694072 is an abundant number, since it is smaller than the sum of its proper divisors (1828671528).

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

1121694072 is a wasteful number, since it uses less digits than its factorization.

1121694072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30896 (or 30892 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1121694072 is about 33491.7015393366. The cubic root of 1121694072 is about 1039.0221553417.

The spelling of 1121694072 in words is "one billion, one hundred twenty-one million, six hundred ninety-four thousand, seventy-two".