378174631 has 4 divisors (see below), whose sum is σ = 381152512. Its totient is φ = 375196752.

The previous prime is 378174619. The next prime is 378174649. The reversal of 378174631 is 136471873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378174631 - 2¹⁷ = 378043559 is a prime.

It is a super-2 number, since 2×378174631² = 286032103063972322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378174661) 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, 1488750 + ... + 1489003.

It is an arithmetic number, because the mean of its divisors is an integer number (95288128).

Almost surely, 2^378174631 is an apocalyptic number.

378174631 is a deficient number, since it is larger than the sum of its proper divisors (2977881).

378174631 is a wasteful number, since it uses less digits than its factorization.

378174631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977880.

The product of its digits is 84672, while the sum is 40.

The square root of 378174631 is about 19446.7126013627. The cubic root of 378174631 is about 723.1540074949.

The spelling of 378174631 in words is "three hundred seventy-eight million, one hundred seventy-four thousand, six hundred thirty-one".