1214044040 has 64 divisors (see below), whose sum is σ = 2985534720. Its totient is φ = 440640000.

The previous prime is 1214044033. The next prime is 1214044043. The reversal of 1214044040 is 404404121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1214044043) 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, 262145 + ... + 266735.

It is an arithmetic number, because the mean of its divisors is an integer number (46648980).

Almost surely, 2^1214044040 is an apocalyptic number.

1214044040 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 1214044040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492767360).

1214044040 is an abundant number, since it is smaller than the sum of its proper divisors (1771490680).

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

1214044040 is a wasteful number, since it uses less digits than its factorization.

1214044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1214044040 is about 34843.1347613845. The cubic root of 1214044040 is about 1066.7880621385.

Adding to 1214044040 its reverse (404404121), we get a palindrome (1618448161).

The spelling of 1214044040 in words is "one billion, two hundred fourteen million, forty-four thousand, forty".