378499431 has 8 divisors (see below), whose sum is σ = 526608000. Its totient is φ = 241361912.

The previous prime is 378499427. The next prime is 378499439. The reversal of 378499431 is 134994873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378499431 - 2² = 378499427 is a prime.

It is a super-2 number, since 2×378499431² = 286523638534647522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378499439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2742681 + ... + 2742818.

It is an arithmetic number, because the mean of its divisors is an integer number (65826000).

Almost surely, 2^378499431 is an apocalyptic number.

378499431 is a deficient number, since it is larger than the sum of its proper divisors (148108569).

378499431 is a wasteful number, since it uses less digits than its factorization.

378499431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485525.

The product of its digits is 653184, while the sum is 48.

The square root of 378499431 is about 19455.0618349056. The cubic root of 378499431 is about 723.3609782002.

The spelling of 378499431 in words is "three hundred seventy-eight million, four hundred ninety-nine thousand, four hundred thirty-one".