381537006 has 16 divisors (see below), whose sum is σ = 764158800. Its totient is φ = 126998208.

The previous prime is 381536989. The next prime is 381537017. The reversal of 381537006 is 600735183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40591 + ... + 49098.

It is an arithmetic number, because the mean of its divisors is an integer number (47759925).

Almost surely, 2^381537006 is an apocalyptic number.

381537006 is an abundant number, since it is smaller than the sum of its proper divisors (382621794).

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

381537006 is a wasteful number, since it uses less digits than its factorization.

381537006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90403.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 381537006 is about 19532.9722776642. The cubic root of 381537006 is about 725.2908898509.

The spelling of 381537006 in words is "three hundred eighty-one million, five hundred thirty-seven thousand, six".