381459902 has 4 divisors (see below), whose sum is σ = 572189856. Its totient is φ = 190729950.

The previous prime is 381459887. The next prime is 381459907. The reversal of 381459902 is 209954183.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 381459902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381459907) by changing a digit.

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 as a sum of consecutive naturals, namely, 95364974 + ... + 95364977.

It is an arithmetic number, because the mean of its divisors is an integer number (143047464).

Almost surely, 2^381459902 is an apocalyptic number.

381459902 is a deficient number, since it is larger than the sum of its proper divisors (190729954).

381459902 is a wasteful number, since it uses less digits than its factorization.

381459902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190729953.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 381459902 is about 19530.9984895806. The cubic root of 381459902 is about 725.2420290629.

The spelling of 381459902 in words is "three hundred eighty-one million, four hundred fifty-nine thousand, nine hundred two".