1250722980 has 288 divisors, whose sum is σ = 4517420544. Its totient is φ = 276959232.

The previous prime is 1250722939. The next prime is 1250722981. The reversal of 1250722980 is 892270521.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1250722981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 914257 + ... + 915623.

It is an arithmetic number, because the mean of its divisors is an integer number (15685488).

Almost surely, 2^1250722980 is an apocalyptic number.

1250722980 is a gapful number since it is divisible by the number (10) 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 1250722980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258710272).

1250722980 is an abundant number, since it is smaller than the sum of its proper divisors (3266697564).

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

1250722980 is a wasteful number, since it uses less digits than its factorization.

1250722980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1250722980 is about 35365.5620625489. The cubic root of 1250722980 is about 1077.4249867478.

The spelling of 1250722980 in words is "one billion, two hundred fifty million, seven hundred twenty-two thousand, nine hundred eighty".