1205801424 has 80 divisors (see below), whose sum is σ = 3502900800. Its totient is φ = 397079424.

The previous prime is 1205801413. The next prime is 1205801453. The reversal of 1205801424 is 4241085021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19042 + ... + 52670.

It is an arithmetic number, because the mean of its divisors is an integer number (43786260).

Almost surely, 2^1205801424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1205801424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751450400).

1205801424 is an abundant number, since it is smaller than the sum of its proper divisors (2297099376).

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

1205801424 is a wasteful number, since it uses less digits than its factorization.

1205801424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33729 (or 33717 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1205801424 is about 34724.6515317289. The cubic root of 1205801424 is about 1064.3682982644.

Adding to 1205801424 its reverse (4241085021), we get a palindrome (5446886445).

The spelling of 1205801424 in words is "one billion, two hundred five million, eight hundred one thousand, four hundred twenty-four".