378453240 has 96 divisors (see below), whose sum is σ = 1341802800. Its totient is φ = 91745280.

The previous prime is 378453223. The next prime is 378453241. The reversal of 378453240 is 42354873.

It is a happy number.

378453240 is a `hidden beast` number, since 3 + 7 + 84 + 532 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 378453195 and 378453204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378453241) 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 23 ways as a sum of consecutive naturals, for example, 43825 + ... + 51744.

Almost surely, 2^378453240 is an apocalyptic number.

378453240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378453240 is an abundant number, since it is smaller than the sum of its proper divisors (963349560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378453240 is a wasteful number, since it uses less digits than its factorization.

378453240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95597 (or 95590 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 378453240 is about 19453.8746783257. The cubic root of 378453240 is about 723.3315513605.

The spelling of 378453240 in words is "three hundred seventy-eight million, four hundred fifty-three thousand, two hundred forty".