1481555420 has 12 divisors (see below), whose sum is σ = 3111266424. Its totient is φ = 592622160.

The previous prime is 1481555417. The next prime is 1481555437. The reversal of 1481555420 is 245551841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37038866 + ... + 37038905.

It is an arithmetic number, because the mean of its divisors is an integer number (259272202).

Almost surely, 2^1481555420 is an apocalyptic number.

1481555420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1481555420 is an abundant number, since it is smaller than the sum of its proper divisors (1629711004).

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

1481555420 is a wasteful number, since it uses less digits than its factorization.

1481555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74077780 (or 74077778 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 1481555420 is about 38490.9784235215. The cubic root of 1481555420 is about 1140.0029290989.

The spelling of 1481555420 in words is "one billion, four hundred eighty-one million, five hundred fifty-five thousand, four hundred twenty".