780049360 has 20 divisors (see below), whose sum is σ = 1813614948. Its totient is φ = 312019712.

The previous prime is 780049357. The next prime is 780049363. The reversal of 780049360 is 63940087.

It is an interprime number because it is at equal distance from previous prime (780049357) and next prime (780049363).

It can be written as a sum of positive squares in 2 ways, for example, as 273439296 + 506610064 = 16536^2 + 22508^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780049363) 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, 4875229 + ... + 4875388.

Almost surely, 2^780049360 is an apocalyptic number.

It is an amenable number.

780049360 is an abundant number, since it is smaller than the sum of its proper divisors (1033565588).

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

780049360 is a wasteful number, since it uses less digits than its factorization.

780049360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750630 (or 9750624 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 780049360 is about 27929.3637593125. The cubic root of 780049360 is about 920.5358252309.

The spelling of 780049360 in words is "seven hundred eighty million, forty-nine thousand, three hundred sixty".