378214491 has 16 divisors (see below), whose sum is σ = 522466560. Its totient is φ = 243079200.

The previous prime is 378214471. The next prime is 378214493. The reversal of 378214491 is 194412873.

It is not a de Polignac number, because 378214491 - 2⁷ = 378214363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378214493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61716 + ... + 67566.

It is an arithmetic number, because the mean of its divisors is an integer number (32654160).

Almost surely, 2^378214491 is an apocalyptic number.

378214491 is a deficient number, since it is larger than the sum of its proper divisors (144252069).

378214491 is a wasteful number, since it uses less digits than its factorization.

378214491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626.

The product of its digits is 48384, while the sum is 39.

The square root of 378214491 is about 19447.7374262406. The cubic root of 378214491 is about 723.1794136641.

The spelling of 378214491 in words is "three hundred seventy-eight million, two hundred fourteen thousand, four hundred ninety-one".