378472913 has 24 divisors (see below), whose sum is σ = 499101120. Its totient is φ = 283681440.

The previous prime is 378472903. The next prime is 378472931. The reversal of 378472913 is 319274873.

It is not a de Polignac number, because 378472913 - 2¹⁰ = 378471889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378472903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3533 + ... + 27738.

It is an arithmetic number, because the mean of its divisors is an integer number (20795880).

Almost surely, 2^378472913 is an apocalyptic number.

It is an amenable number.

378472913 is a deficient number, since it is larger than the sum of its proper divisors (120628207).

378472913 is a wasteful number, since it uses less digits than its factorization.

378472913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31317 (or 31310 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 378472913 is about 19454.3803036745. The cubic root of 378472913 is about 723.3440847055.

The spelling of 378472913 in words is "three hundred seventy-eight million, four hundred seventy-two thousand, nine hundred thirteen".