1201405450 has 48 divisors (see below), whose sum is σ = 2557604160. Its totient is φ = 411304320.

The previous prime is 1201405441. The next prime is 1201405451. The reversal of 1201405450 is 545041021.

It is not an unprimeable number, because it can be changed into a prime (1201405451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281029 + ... + 285271.

It is an arithmetic number, because the mean of its divisors is an integer number (53283420).

Almost surely, 2^1201405450 is an apocalyptic number.

1201405450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201405450 is an abundant number, since it is smaller than the sum of its proper divisors (1356198710).

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

1201405450 is a wasteful number, since it uses less digits than its factorization.

1201405450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1201405450 is about 34661.2961384885. The cubic root of 1201405450 is about 1063.0732721808.

Adding to 1201405450 its reverse (545041021), we get a palindrome (1746446471).

The spelling of 1201405450 in words is "one billion, two hundred one million, four hundred five thousand, four hundred fifty".