1115901420 has 96 divisors (see below), whose sum is σ = 3415136256. Its totient is φ = 271027200.

The previous prime is 1115901383. The next prime is 1115901421. The reversal of 1115901420 is 241095111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1115901421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13975 + ... + 49265.

It is an arithmetic number, because the mean of its divisors is an integer number (35574336).

Almost surely, 2^1115901420 is an apocalyptic number.

1115901420 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 1115901420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707568128).

1115901420 is an abundant number, since it is smaller than the sum of its proper divisors (2299234836).

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

1115901420 is a wasteful number, since it uses less digits than its factorization.

1115901420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35351 (or 35349 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1115901420 is about 33405.1106868395. The cubic root of 1115901420 is about 1037.2304950538.

Adding to 1115901420 its reverse (241095111), we get a palindrome (1356996531).

The spelling of 1115901420 in words is "one billion, one hundred fifteen million, nine hundred one thousand, four hundred twenty".