1201425792 has 128 divisors (see below), whose sum is σ = 3805954560. Its totient is φ = 328323072.

The previous prime is 1201425781. The next prime is 1201425793. The reversal of 1201425792 is 2975241021.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201425793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52108 + ... + 71540.

It is an arithmetic number, because the mean of its divisors is an integer number (29734020).

Almost surely, 2^1201425792 is an apocalyptic number.

1201425792 is a gapful number since it is divisible by the number (12) 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 1201425792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1902977280).

1201425792 is an abundant number, since it is smaller than the sum of its proper divisors (2604528768).

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

1201425792 is a wasteful number, since it uses less digits than its factorization.

1201425792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19480 (or 19468 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1201425792 is about 34661.5895769366. The cubic root of 1201425792 is about 1063.0792720743.

The spelling of 1201425792 in words is "one billion, two hundred one million, four hundred twenty-five thousand, seven hundred ninety-two".