381672546 has 16 divisors (see below), whose sum is σ = 763794624. Its totient is φ = 127149264.

The previous prime is 381672541. The next prime is 381672563. The reversal of 381672546 is 645276183.

It is a junction number, because it is equal to n+sod(n) for n = 381672498 and 381672507.

It is not an unprimeable number, because it can be changed into a prime (381672541) 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, 7141 + ... + 28536.

It is an arithmetic number, because the mean of its divisors is an integer number (47737164).

Almost surely, 2^381672546 is an apocalyptic number.

381672546 is an abundant number, since it is smaller than the sum of its proper divisors (382122078).

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

381672546 is a wasteful number, since it uses less digits than its factorization.

381672546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37465.

The product of its digits is 241920, while the sum is 42.

The square root of 381672546 is about 19536.4414876405. The cubic root of 381672546 is about 725.3767655650.

The spelling of 381672546 in words is "three hundred eighty-one million, six hundred seventy-two thousand, five hundred forty-six".