1420115450 has 72 divisors (see below), whose sum is σ = 2984996448. Its totient is φ = 501483840.

The previous prime is 1420115407. The next prime is 1420115453. The reversal of 1420115450 is 545110241.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420115453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190697 + ... + 198003.

It is an arithmetic number, because the mean of its divisors is an integer number (41458284).

Almost surely, 2^1420115450 is an apocalyptic number.

1420115450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420115450 is an abundant number, since it is smaller than the sum of its proper divisors (1564880998).

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

1420115450 is a wasteful number, since it uses less digits than its factorization.

1420115450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368 (or 7350 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1420115450 is about 37684.4191941444. The cubic root of 1420115450 is about 1124.0213249966.

Adding to 1420115450 its reverse (545110241), we get a palindrome (1965225691).

The spelling of 1420115450 in words is "one billion, four hundred twenty million, one hundred fifteen thousand, four hundred fifty".