1440212112 has 30 divisors (see below), whose sum is σ = 4030594022. Its totient is φ = 480070656.

The previous prime is 1440212083. The next prime is 1440212119. The reversal of 1440212112 is 2112120441.

1440212112 is a `hidden beast` number, since 1 + 440 + 212 + 1 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1074790656 + 365421456 = 32784^2 + 19116^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1440212119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5000593 + ... + 5000880.

Almost surely, 2^1440212112 is an apocalyptic number.

1440212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1440212112 is an abundant number, since it is smaller than the sum of its proper divisors (2590381910).

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

1440212112 is a wasteful number, since it uses less digits than its factorization.

1440212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001487 (or 10001478 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1440212112 is about 37950.1266401049. The cubic root of 1440212112 is about 1129.2986777779.

Adding to 1440212112 its reverse (2112120441), we get a palindrome (3552332553).

The spelling of 1440212112 in words is "one billion, four hundred forty million, two hundred twelve thousand, one hundred twelve".