1205722452 has 24 divisors (see below), whose sum is σ = 3069112032. Its totient is φ = 365370400.

The previous prime is 1205722447. The next prime is 1205722457. The reversal of 1205722452 is 2542275021.

It is an interprime number because it is at equal distance from previous prime (1205722447) and next prime (1205722457).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205722457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566999 + ... + 4567262.

It is an arithmetic number, because the mean of its divisors is an integer number (127879668).

Almost surely, 2^1205722452 is an apocalyptic number.

1205722452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1205722452 is an abundant number, since it is smaller than the sum of its proper divisors (1863389580).

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

1205722452 is a wasteful number, since it uses less digits than its factorization.

1205722452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134279 (or 9134277 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 1205722452 is about 34723.5143958672. The cubic root of 1205722452 is about 1064.3450614011.

Adding to 1205722452 its reverse (2542275021), we get a palindrome (3747997473).

The spelling of 1205722452 in words is "one billion, two hundred five million, seven hundred twenty-two thousand, four hundred fifty-two".