378405937 has 8 divisors (see below), whose sum is σ = 465730496. Its totient is φ = 299398032.

The previous prime is 378405901. The next prime is 378405943. The reversal of 378405937 is 739504873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378405937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378405337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079063 + ... + 2079244.

It is an arithmetic number, because the mean of its divisors is an integer number (58216312).

Almost surely, 2^378405937 is an apocalyptic number.

It is an amenable number.

378405937 is a deficient number, since it is larger than the sum of its proper divisors (87324559).

378405937 is a wasteful number, since it uses less digits than its factorization.

378405937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158327.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 378405937 is about 19452.6588671061. The cubic root of 378405937 is about 723.3014136188.

The spelling of 378405937 in words is "three hundred seventy-eight million, four hundred five thousand, nine hundred thirty-seven".