381718142 has 16 divisors (see below), whose sum is σ = 617978592. Its totient is φ = 175789920.

The previous prime is 381718121. The next prime is 381718147. The reversal of 381718142 is 241817183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381718147) 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, 3938 + ... + 27909.

It is an arithmetic number, because the mean of its divisors is an integer number (38623662).

Almost surely, 2^381718142 is an apocalyptic number.

381718142 is a deficient number, since it is larger than the sum of its proper divisors (236260450).

381718142 is a wasteful number, since it uses less digits than its factorization.

381718142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32323.

The product of its digits is 10752, while the sum is 35.

The square root of 381718142 is about 19537.6084002111. The cubic root of 381718142 is about 725.4056498030.

The spelling of 381718142 in words is "three hundred eighty-one million, seven hundred eighteen thousand, one hundred forty-two".