1443125380 has 24 divisors (see below), whose sum is σ = 3104481240. Its totient is φ = 563170560.

The previous prime is 1443125351. The next prime is 1443125381. The reversal of 1443125380 is 835213441.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 1439747136 = 1838^2 + 37944^2 .

It is a super-2 number, since 2×1443125380² = 4165221724800288800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1443125381) 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, 879135 + ... + 880774.

It is an arithmetic number, because the mean of its divisors is an integer number (129353385).

Almost surely, 2^1443125380 is an apocalyptic number.

1443125380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443125380 is an abundant number, since it is smaller than the sum of its proper divisors (1661355860).

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

1443125380 is a wasteful number, since it uses less digits than its factorization.

1443125380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759959 (or 1759957 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1443125380 is about 37988.4900989760. The cubic root of 1443125380 is about 1130.0596152014.

The spelling of 1443125380 in words is "one billion, four hundred forty-three million, one hundred twenty-five thousand, three hundred eighty".