378940497 has 32 divisors (see below), whose sum is σ = 563834880. Its totient is φ = 224804160.

The previous prime is 378940487. The next prime is 378940501. The reversal of 378940497 is 794049873.

It is a happy number.

It is not a de Polignac number, because 378940497 - 2⁴ = 378940481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378940487) 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 31 ways as a sum of consecutive naturals, for example, 457798 + ... + 458624.

It is an arithmetic number, because the mean of its divisors is an integer number (17619840).

Almost surely, 2^378940497 is an apocalyptic number.

It is an amenable number.

378940497 is a deficient number, since it is larger than the sum of its proper divisors (184894383).

378940497 is a wasteful number, since it uses less digits than its factorization.

378940497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 378940497 is about 19466.3940420408. The cubic root of 378940497 is about 723.6418470360.

The spelling of 378940497 in words is "three hundred seventy-eight million, nine hundred forty thousand, four hundred ninety-seven".