378018431 has 8 divisors (see below), whose sum is σ = 435985440. Its totient is φ = 321042528.

The previous prime is 378018391. The next prime is 378018467. The reversal of 378018431 is 134810873.

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 378018431 - 2⁶ = 378018367 is a prime.

It is a super-2 number, since 2×378018431² = 285795868351403522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378018391 and 378018400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378018131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246956 + ... + 248481.

It is an arithmetic number, because the mean of its divisors is an integer number (54498180).

Almost surely, 2^378018431 is an apocalyptic number.

378018431 is a deficient number, since it is larger than the sum of its proper divisors (57967009).

378018431 is a wasteful number, since it uses less digits than its factorization.

378018431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495553.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 378018431 is about 19442.6960836197. The cubic root of 378018431 is about 723.0544307367.

The spelling of 378018431 in words is "three hundred seventy-eight million, eighteen thousand, four hundred thirty-one".