378512229 has 4 divisors (see below), whose sum is σ = 504682976. Its totient is φ = 252341484.

The previous prime is 378512203. The next prime is 378512269. The reversal of 378512229 is 922215873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378512229 - 2²⁴ = 361735013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378512269) 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, 63085369 + ... + 63085374.

It is an arithmetic number, because the mean of its divisors is an integer number (126170744).

Almost surely, 2^378512229 is an apocalyptic number.

It is an amenable number.

378512229 is a deficient number, since it is larger than the sum of its proper divisors (126170747).

378512229 is a wasteful number, since it uses less digits than its factorization.

378512229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126170746.

The product of its digits is 60480, while the sum is 39.

The square root of 378512229 is about 19455.3907439558. The cubic root of 378512229 is about 723.3691309817.

The spelling of 378512229 in words is "three hundred seventy-eight million, five hundred twelve thousand, two hundred twenty-nine".