378744506 has 32 divisors (see below), whose sum is σ = 669969792. Its totient is φ = 157187520.

The previous prime is 378744503. The next prime is 378744523. The reversal of 378744506 is 605447873.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378744503) 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, 115976 + ... + 119196.

It is an arithmetic number, because the mean of its divisors is an integer number (20936556).

Almost surely, 2^378744506 is an apocalyptic number.

378744506 is a deficient number, since it is larger than the sum of its proper divisors (291225286).

378744506 is a wasteful number, since it uses less digits than its factorization.

378744506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 378744506 is about 19461.3593050434. The cubic root of 378744506 is about 723.5170677731.

The spelling of 378744506 in words is "three hundred seventy-eight million, seven hundred forty-four thousand, five hundred six".