1201440340 has 24 divisors (see below), whose sum is σ = 2604413952. Its totient is φ = 465073440.

The previous prime is 1201440301. The next prime is 1201440353. The reversal of 1201440340 is 430441021.

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, 968284 + ... + 969523.

It is an arithmetic number, because the mean of its divisors is an integer number (108517248).

Almost surely, 2^1201440340 is an apocalyptic number.

1201440340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201440340 is an abundant number, since it is smaller than the sum of its proper divisors (1402973612).

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

1201440340 is a wasteful number, since it uses less digits than its factorization.

1201440340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937847 (or 1937845 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1201440340 is about 34661.7994339590. The cubic root of 1201440340 is about 1063.0835629802.

Adding to 1201440340 its reverse (430441021), we get a palindrome (1631881361).

The spelling of 1201440340 in words is "one billion, two hundred one million, four hundred forty thousand, three hundred forty".