378453241 has 2 divisors, whose sum is σ = 378453242. Its totient is φ = 378453240.

The previous prime is 378453223. The next prime is 378453253. The reversal of 378453241 is 142354873.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234549225 + 143904016 = 15315^2 + 11996^2 .

It is a cyclic number.

It is not a de Polignac number, because 378453241 - 2⁹ = 378452729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378453241.

It is not a weakly prime, because it can be changed into another prime (378453221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189226620 + 189226621.

It is an arithmetic number, because the mean of its divisors is an integer number (189226621).

Almost surely, 2^378453241 is an apocalyptic number.

It is an amenable number.

378453241 is a deficient number, since it is larger than the sum of its proper divisors (1).

378453241 is an equidigital number, since it uses as much as digits as its factorization.

378453241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 378453241 is about 19453.8747040275. The cubic root of 378453241 is about 723.3315519976.

The spelling of 378453241 in words is "three hundred seventy-eight million, four hundred fifty-three thousand, two hundred forty-one".