378428425 has 12 divisors (see below), whose sum is σ = 470310300. Its totient is φ = 302059520.

The previous prime is 378428411. The next prime is 378428429. The reversal of 378428425 is 524824873.

It can be written as a sum of positive squares in 6 ways, for example, as 30680521 + 347747904 = 5539^2 + 18648^2 .

It is not a de Polignac number, because 378428425 - 2¹³ = 378420233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378428429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5632 + ... + 28081.

It is an arithmetic number, because the mean of its divisors is an integer number (39192525).

Almost surely, 2^378428425 is an apocalyptic number.

It is an amenable number.

378428425 is a deficient number, since it is larger than the sum of its proper divisors (91881875).

378428425 is a wasteful number, since it uses less digits than its factorization.

378428425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34172 (or 34167 counting only the distinct ones).

The product of its digits is 430080, while the sum is 43.

The square root of 378428425 is about 19453.2368771883. The cubic root of 378428425 is about 723.3157415124.

The spelling of 378428425 in words is "three hundred seventy-eight million, four hundred twenty-eight thousand, four hundred twenty-five".