378433746 has 12 divisors (see below), whose sum is σ = 819939822. Its totient is φ = 126144576.

The previous prime is 378433739. The next prime is 378433777. The reversal of 378433746 is 647334873.

378433746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 361418121 + 17015625 = 19011^2 + 4125^2 .

It is a super-2 number, since 2×378433746² = 286424200223185032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10512031 + ... + 10512066.

Almost surely, 2^378433746 is an apocalyptic number.

378433746 is an abundant number, since it is smaller than the sum of its proper divisors (441506076).

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

378433746 is a wasteful number, since it uses less digits than its factorization.

378433746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21024105 (or 21024102 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 378433746 is about 19453.3736405797. The cubic root of 378433746 is about 723.3191316251.

The spelling of 378433746 in words is "three hundred seventy-eight million, four hundred thirty-three thousand, seven hundred forty-six".