378073507 has 4 divisors (see below), whose sum is σ = 432084016. Its totient is φ = 324063000.

The previous prime is 378073483. The next prime is 378073529. The reversal of 378073507 is 705370873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705370873 = 2731 ⋅258283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378073507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378073507.

It is not an unprimeable number, because it can be changed into a prime (378073307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27005244 + ... + 27005257.

It is an arithmetic number, because the mean of its divisors is an integer number (108021004).

Almost surely, 2^378073507 is an apocalyptic number.

378073507 is a deficient number, since it is larger than the sum of its proper divisors (54010509).

378073507 is an equidigital number, since it uses as much as digits as its factorization.

378073507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54010508.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 378073507 is about 19444.1123993871. The cubic root of 378073507 is about 723.0895445554.

It can be divided in two parts, 37807 and 3507, that added together give a palindrome (41314).

The spelling of 378073507 in words is "three hundred seventy-eight million, seventy-three thousand, five hundred seven".