378336782 has 4 divisors (see below), whose sum is σ = 567505176. Its totient is φ = 189168390.

The previous prime is 378336773. The next prime is 378336799. The reversal of 378336782 is 287633873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287633873 = 8677 ⋅33149.

It is a super-2 number, since 2×378336782² = 286277441228231048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94584194 + ... + 94584197.

It is an arithmetic number, because the mean of its divisors is an integer number (141876294).

Almost surely, 2^378336782 is an apocalyptic number.

378336782 is a deficient number, since it is larger than the sum of its proper divisors (189168394).

378336782 is a wasteful number, since it uses less digits than its factorization.

378336782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189168393.

The product of its digits is 1016064, while the sum is 47.

The square root of 378336782 is about 19450.8812653823. The cubic root of 378336782 is about 723.2573489854.

The spelling of 378336782 in words is "three hundred seventy-eight million, three hundred thirty-six thousand, seven hundred eighty-two".