1214332240 has 40 divisors (see below), whose sum is σ = 3079990368. Its totient is φ = 441575040.

The previous prime is 1214332213. The next prime is 1214332303. The reversal of 1214332240 is 422334121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689082 + ... + 690841.

Almost surely, 2^1214332240 is an apocalyptic number.

1214332240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214332240 is an abundant number, since it is smaller than the sum of its proper divisors (1865658128).

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

1214332240 is a wasteful number, since it uses less digits than its factorization.

1214332240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379947 (or 1379941 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1214332240 is about 34847.2701943782. The cubic root of 1214332240 is about 1066.8724698383.

Adding to 1214332240 its reverse (422334121), we get a palindrome (1636666361).

The spelling of 1214332240 in words is "one billion, two hundred fourteen million, three hundred thirty-two thousand, two hundred forty".