1438880556 has 12 divisors (see below), whose sum is σ = 3357387992. Its totient is φ = 479626848.

The previous prime is 1438880539. The next prime is 1438880557. The reversal of 1438880556 is 6550888341.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1438880557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59953345 + ... + 59953368.

Almost surely, 2^1438880556 is an apocalyptic number.

It is an amenable number.

1438880556 is an abundant number, since it is smaller than the sum of its proper divisors (1918507436).

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

1438880556 is a wasteful number, since it uses less digits than its factorization.

1438880556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119906720 (or 119906718 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 1438880556 is about 37932.5790844757. The cubic root of 1438880556 is about 1128.9505373706.

The spelling of 1438880556 in words is "one billion, four hundred thirty-eight million, eight hundred eighty thousand, five hundred fifty-six".