1112219640 has 192 divisors, whose sum is σ = 4312893600. Its totient is φ = 254209536.

The previous prime is 1112219621. The next prime is 1112219651. The reversal of 1112219640 is 469122111.

1112219640 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 2 + 19 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42412 + ... + 63428.

Almost surely, 2^1112219640 is an apocalyptic number.

1112219640 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 1112219640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2156446800).

1112219640 is an abundant number, since it is smaller than the sum of its proper divisors (3200673960).

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

1112219640 is a wasteful number, since it uses less digits than its factorization.

1112219640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21051 (or 21034 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1112219640 is about 33349.9571214117. The cubic root of 1112219640 is about 1036.0884998661.

The spelling of 1112219640 in words is "one billion, one hundred twelve million, two hundred nineteen thousand, six hundred forty".