1214034140 has 72 divisors (see below), whose sum is σ = 2830627296. Its totient is φ = 437008000.

The previous prime is 1214034119. The next prime is 1214034161. The reversal of 1214034140 is 414304121.

It is an interprime number because it is at equal distance from previous prime (1214034119) and next prime (1214034161).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241937 + ... + 246903.

It is an arithmetic number, because the mean of its divisors is an integer number (39314268).

Almost surely, 2^1214034140 is an apocalyptic number.

1214034140 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 1214034140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415313648).

1214034140 is an abundant number, since it is smaller than the sum of its proper divisors (1616593156).

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

1214034140 is a wasteful number, since it uses less digits than its factorization.

1214034140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1214034140 is about 34842.9926958061. The cubic root of 1214034140 is about 1066.7851624001.

Adding to 1214034140 its reverse (414304121), we get a palindrome (1628338261).

The spelling of 1214034140 in words is "one billion, two hundred fourteen million, thirty-four thousand, one hundred forty".