378725535 has 12 divisors (see below), whose sum is σ = 656457672. Its totient is φ = 201986928.

The previous prime is 378725519. The next prime is 378725563. The reversal of 378725535 is 535527873.

378725535 is a `hidden beast` number, since 37 + 87 + 2 + 5 + 535 = 666.

It is not a de Polignac number, because 378725535 - 2⁴ = 378725519 is a prime.

It is a super-2 number, since 2×378725535² = 286866061722072450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8416123 = 378725535 / (3 + 7 + 8 + 7 + 2 + 5 + 5 + 3 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4208017 + ... + 4208106.

It is an arithmetic number, because the mean of its divisors is an integer number (54704806).

Almost surely, 2^378725535 is an apocalyptic number.

378725535 is a deficient number, since it is larger than the sum of its proper divisors (277732137).

378725535 is a wasteful number, since it uses less digits than its factorization.

378725535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416134 (or 8416131 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 378725535 is about 19460.8718972198. The cubic root of 378725535 is about 723.5049874470.

The spelling of 378725535 in words is "three hundred seventy-eight million, seven hundred twenty-five thousand, five hundred thirty-five".