1000722750 has 32 divisors (see below), whose sum is σ = 2497805856. Its totient is φ = 266859200.

The previous prime is 1000722727. The next prime is 1000722769. The reversal of 1000722750 is 572270001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000722750.

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, 666399 + ... + 667898.

It is an arithmetic number, because the mean of its divisors is an integer number (78056433).

Almost surely, 2^1000722750 is an apocalyptic number.

1000722750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000722750 is an abundant number, since it is smaller than the sum of its proper divisors (1497083106).

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

1000722750 is a wasteful number, since it uses less digits than its factorization.

1000722750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334317 (or 1334307 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 1000722750 is about 31634.2022184850. The cubic root of 1000722750 is about 1000.2408586491.

Adding to 1000722750 its reverse (572270001), we get a palindrome (1572992751).

The spelling of 1000722750 in words is "one billion, seven hundred twenty-two thousand, seven hundred fifty".