378379129 has 4 divisors (see below), whose sum is σ = 398293840. Its totient is φ = 358464420.

The previous prime is 378379117. The next prime is 378379151. The reversal of 378379129 is 921973873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378379129 - 2⁵ = 378379097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378379109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9957327 + ... + 9957364.

It is an arithmetic number, because the mean of its divisors is an integer number (99573460).

Almost surely, 2^378379129 is an apocalyptic number.

It is an amenable number.

378379129 is a deficient number, since it is larger than the sum of its proper divisors (19914711).

378379129 is a wasteful number, since it uses less digits than its factorization.

378379129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914710.

The product of its digits is 571536, while the sum is 49.

The square root of 378379129 is about 19451.9697974267. The cubic root of 378379129 is about 723.2843325600.

The spelling of 378379129 in words is "three hundred seventy-eight million, three hundred seventy-nine thousand, one hundred twenty-nine".