3780638746 has 8 divisors (see below), whose sum is σ = 5682798720. Its totient is φ = 1886372508.

The previous prime is 3780638723. The next prime is 3780638747. The reversal of 3780638746 is 6478360873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3780638693 and 3780638702.

It is not an unprimeable number, because it can be changed into a prime (3780638747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972236 + ... + 1974151.

It is an arithmetic number, because the mean of its divisors is an integer number (710349840).

Almost surely, 2^3780638746 is an apocalyptic number.

3780638746 is a deficient number, since it is larger than the sum of its proper divisors (1902159974).

3780638746 is a wasteful number, since it uses less digits than its factorization.

3780638746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946868.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The square root of 3780638746 is about 61486.8989785629. The cubic root of 3780638746 is about 1557.8359685986.

The spelling of 3780638746 in words is "three billion, seven hundred eighty million, six hundred thirty-eight thousand, seven hundred forty-six".