1245042032 has 80 divisors (see below), whose sum is σ = 2793154560. Its totient is φ = 532728576.

The previous prime is 1245042031. The next prime is 1245042037. The reversal of 1245042032 is 2302405421.

It is a happy number.

It is a super-2 number, since 2×1245042032² = 3100259322893378048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245041989 and 1245042007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245042031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182393 + ... + 189095.

It is an arithmetic number, because the mean of its divisors is an integer number (34914432).

Almost surely, 2^1245042032 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 1245042032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396577280).

1245042032 is an abundant number, since it is smaller than the sum of its proper divisors (1548112528).

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

1245042032 is a wasteful number, since it uses less digits than its factorization.

1245042032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790 (or 6784 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1245042032 is about 35285.1531383952. The cubic root of 1245042032 is about 1075.7912420979.

Adding to 1245042032 its reverse (2302405421), we get a palindrome (3547447453).

The spelling of 1245042032 in words is "one billion, two hundred forty-five million, forty-two thousand, thirty-two".