1375228572 has 24 divisors (see below), whose sum is σ = 3312379392. Its totient is φ = 443622000.

The previous prime is 1375228571. The next prime is 1375228619. The reversal of 1375228572 is 2758225731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375228571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848054 + ... + 1848797.

It is an arithmetic number, because the mean of its divisors is an integer number (138015808).

Almost surely, 2^1375228572 is an apocalyptic number.

1375228572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1375228572 is an abundant number, since it is smaller than the sum of its proper divisors (1937150820).

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

1375228572 is a wasteful number, since it uses less digits than its factorization.

1375228572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696889 (or 3696887 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 1375228572 is about 37084.0743716221. The cubic root of 1375228572 is about 1112.0516587891.

It can be divided in two parts, 13752 and 28572, that added together give a palindrome (42324).

The spelling of 1375228572 in words is "one billion, three hundred seventy-five million, two hundred twenty-eight thousand, five hundred seventy-two".