381406202 has 8 divisors (see below), whose sum is σ = 591837300. Its totient is φ = 184127104.

The previous prime is 381406189. The next prime is 381406211. The reversal of 381406202 is 202604183.

It can be written as a sum of positive squares in 2 ways, for example, as 379821121 + 1585081 = 19489^2 + 1259^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3287927 + ... + 3288042.

Almost surely, 2^381406202 is an apocalyptic number.

381406202 is a deficient number, since it is larger than the sum of its proper divisors (210431098).

381406202 is a wasteful number, since it uses less digits than its factorization.

381406202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576000.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 381406202 is about 19529.6237034921. The cubic root of 381406202 is about 725.2079954948.

The spelling of 381406202 in words is "three hundred eighty-one million, four hundred six thousand, two hundred two".