1485347440 has 20 divisors (see below), whose sum is σ = 3453432984. Its totient is φ = 594138944.

The previous prime is 1485347417. The next prime is 1485347449. The reversal of 1485347440 is 447435841.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1485347393 and 1485347402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485347449) 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, 9283342 + ... + 9283501.

Almost surely, 2^1485347440 is an apocalyptic number.

1485347440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1485347440 is an abundant number, since it is smaller than the sum of its proper divisors (1968085544).

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

1485347440 is a wasteful number, since it uses less digits than its factorization.

1485347440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566856 (or 18566850 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 1485347440 is about 38540.2055002305. The cubic root of 1485347440 is about 1140.9747075732.

The spelling of 1485347440 in words is "one billion, four hundred eighty-five million, three hundred forty-seven thousand, four hundred forty".