1485779340 has 48 divisors (see below), whose sum is σ = 4190135040. Its totient is φ = 393355200.

The previous prime is 1485779333. The next prime is 1485779341. The reversal of 1485779340 is 439775841.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1485779340.

It is not an unprimeable number, because it can be changed into a prime (1485779341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80736 + ... + 97415.

It is an arithmetic number, because the mean of its divisors is an integer number (87294480).

Almost surely, 2^1485779340 is an apocalyptic number.

1485779340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1485779340 is an abundant number, since it is smaller than the sum of its proper divisors (2704355700).

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

1485779340 is a wasteful number, since it uses less digits than its factorization.

1485779340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178302 (or 178300 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 1485779340 is about 38545.8083324244. The cubic root of 1485779340 is about 1141.0852853427.

The spelling of 1485779340 in words is "one billion, four hundred eighty-five million, seven hundred seventy-nine thousand, three hundred forty".