378165790 has 16 divisors (see below), whose sum is σ = 681025968. Its totient is φ = 151193536.

The previous prime is 378165773. The next prime is 378165817. The reversal of 378165790 is 97561873.

It is a self number, because there is not a number n which added to its sum of digits gives 378165790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16029 + ... + 31831.

It is an arithmetic number, because the mean of its divisors is an integer number (42564123).

Almost surely, 2^378165790 is an apocalyptic number.

378165790 is a deficient number, since it is larger than the sum of its proper divisors (302860178).

378165790 is a wasteful number, since it uses less digits than its factorization.

378165790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18203.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 378165790 is about 19446.4852865499. The cubic root of 378165790 is about 723.1483721315.

The spelling of 378165790 in words is "three hundred seventy-eight million, one hundred sixty-five thousand, seven hundred ninety".