3780325840 has 20 divisors (see below), whose sum is σ = 8789257764. Its totient is φ = 1512130304.

The previous prime is 3780325831. The next prime is 3780325847. The reversal of 3780325840 is 485230873.

It can be written as a sum of positive squares in 2 ways, for example, as 919787584 + 2860538256 = 30328^2 + 53484^2 .

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 = 3780325793 and 3780325802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780325847) 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, 23626957 + ... + 23627116.

Almost surely, 2^3780325840 is an apocalyptic number.

It is an amenable number.

3780325840 is an abundant number, since it is smaller than the sum of its proper divisors (5008931924).

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

3780325840 is a wasteful number, since it uses less digits than its factorization.

3780325840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47254086 (or 47254080 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 3780325840 is about 61484.3544326522. The cubic root of 3780325840 is about 1557.7929891179.

The spelling of 3780325840 in words is "three billion, seven hundred eighty million, three hundred twenty-five thousand, eight hundred forty".