1481072440 has 16 divisors (see below), whose sum is σ = 3332413080. Its totient is φ = 592428960.

The previous prime is 1481072431. The next prime is 1481072443. The reversal of 1481072440 is 442701841.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481072443) 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, 18513366 + ... + 18513445.

Almost surely, 2^1481072440 is an apocalyptic number.

1481072440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1481072440 is an abundant number, since it is smaller than the sum of its proper divisors (1851340640).

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

1481072440 is a wasteful number, since it uses less digits than its factorization.

1481072440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026822 (or 37026818 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 1481072440 is about 38484.7039744364. The cubic root of 1481072440 is about 1139.8790371294.

The spelling of 1481072440 in words is "one billion, four hundred eighty-one million, seventy-two thousand, four hundred forty".