1214120240 has 40 divisors (see below), whose sum is σ = 2826389040. Its totient is φ = 485035776.

The previous prime is 1214120221. The next prime is 1214120261. The reversal of 1214120240 is 420214121.

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

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, 57167 + ... + 75473.

It is an arithmetic number, because the mean of its divisors is an integer number (70659726).

Almost surely, 2^1214120240 is an apocalyptic number.

1214120240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214120240 is an abundant number, since it is smaller than the sum of its proper divisors (1612268800).

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

1214120240 is a wasteful number, since it uses less digits than its factorization.

1214120240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19149 (or 19143 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1214120240 is about 34844.2282164493. The cubic root of 1214120240 is about 1066.8103808098.

Adding to 1214120240 its reverse (420214121), we get a palindrome (1634334361).

The spelling of 1214120240 in words is "one billion, two hundred fourteen million, one hundred twenty thousand, two hundred forty".