378428707 has 8 divisors (see below), whose sum is σ = 382738400. Its totient is φ = 374134464.

The previous prime is 378428693. The next prime is 378428717. The reversal of 378428707 is 707824873.

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

It is a cyclic number.

It is not a de Polignac number, because 378428707 - 2²⁷ = 244210979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378428717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49519 + ... + 56647.

It is an arithmetic number, because the mean of its divisors is an integer number (47842300).

Almost surely, 2^378428707 is an apocalyptic number.

378428707 is a deficient number, since it is larger than the sum of its proper divisors (4309693).

378428707 is a wasteful number, since it uses less digits than its factorization.

378428707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 526848, while the sum is 46.

The square root of 378428707 is about 19453.2441253381. The cubic root of 378428707 is about 723.3159211809.

The spelling of 378428707 in words is "three hundred seventy-eight million, four hundred twenty-eight thousand, seven hundred seven".