378137236 has 12 divisors (see below), whose sum is σ = 665397460. Its totient is φ = 188023680.

The previous prime is 378137197. The next prime is 378137257. The reversal of 378137236 is 632731873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133402500 + 244734736 = 11550^2 + 15644^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260421 + ... + 261868.

Almost surely, 2^378137236 is an apocalyptic number.

It is an amenable number.

378137236 is a deficient number, since it is larger than the sum of its proper divisors (287260224).

378137236 is a wasteful number, since it uses less digits than its factorization.

378137236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522474 (or 522472 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 378137236 is about 19445.7511040330. The cubic root of 378137236 is about 723.1301708567.

The spelling of 378137236 in words is "three hundred seventy-eight million, one hundred thirty-seven thousand, two hundred thirty-six".