1481489720 has 16 divisors (see below), whose sum is σ = 3333351960. Its totient is φ = 592595872.

The previous prime is 1481489699. The next prime is 1481489743. The reversal of 1481489720 is 279841841.

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, 18518582 + ... + 18518661.

Almost surely, 2^1481489720 is an apocalyptic number.

1481489720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1481489720 is an abundant number, since it is smaller than the sum of its proper divisors (1851862240).

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

1481489720 is a wasteful number, since it uses less digits than its factorization.

1481489720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037254 (or 37037250 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1481489720 is about 38490.1249673212. The cubic root of 1481489720 is about 1139.9860775975.

The spelling of 1481489720 in words is "one billion, four hundred eighty-one million, four hundred eighty-nine thousand, seven hundred twenty".