1201418240 has 104 divisors (see below), whose sum is σ = 3145737168. Its totient is φ = 436797440.

The previous prime is 1201418227. The next prime is 1201418243. The reversal of 1201418240 is 428141021.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1201418243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222614 + ... + 227946.

Almost surely, 2^1201418240 is an apocalyptic number.

1201418240 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 1201418240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572868584).

1201418240 is an abundant number, since it is smaller than the sum of its proper divisors (1944318928).

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

1201418240 is an equidigital number, since it uses as much as digits as its factorization.

1201418240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373 (or 5351 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1201418240 is about 34661.4806377339. The cubic root of 1201418240 is about 1063.0770446122.

Adding to 1201418240 its reverse (428141021), we get a palindrome (1629559261).

The spelling of 1201418240 in words is "one billion, two hundred one million, four hundred eighteen thousand, two hundred forty".