378867469 has 4 divisors (see below), whose sum is σ = 378917820. Its totient is φ = 378817120.

The previous prime is 378867451. The next prime is 378867473. The reversal of 378867469 is 964768873.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130804969 + 248062500 = 11437^2 + 15750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378867469 is a prime.

It is a super-2 number, since 2×378867469² = 287081118132931922, 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 (378862469) 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, 11362 + ... + 29779.

It is an arithmetic number, because the mean of its divisors is an integer number (94729455).

Almost surely, 2^378867469 is an apocalyptic number.

It is an amenable number.

378867469 is a deficient number, since it is larger than the sum of its proper divisors (50351).

378867469 is an equidigital number, since it uses as much as digits as its factorization.

378867469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50350.

The product of its digits is 12192768, while the sum is 58.

The square root of 378867469 is about 19464.5182062131. The cubic root of 378867469 is about 723.5953581964.

The spelling of 378867469 in words is "three hundred seventy-eight million, eight hundred sixty-seven thousand, four hundred sixty-nine".