1481923728 has 80 divisors (see below), whose sum is σ = 4503908160. Its totient is φ = 464914944.

The previous prime is 1481923717. The next prime is 1481923739. The reversal of 1481923728 is 8273291841.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1481923717) and next prime (1481923739).

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, 93550 + ... + 108237.

It is an arithmetic number, because the mean of its divisors is an integer number (56298852).

Almost surely, 2^1481923728 is an apocalyptic number.

1481923728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1481923728 is an abundant number, since it is smaller than the sum of its proper divisors (3021984432).

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

1481923728 is a wasteful number, since it uses less digits than its factorization.

1481923728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201821 (or 201809 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 1481923728 is about 38495.7624680951. The cubic root of 1481923728 is about 1140.0973878020.

The spelling of 1481923728 in words is "one billion, four hundred eighty-one million, nine hundred twenty-three thousand, seven hundred twenty-eight".