381707402 has 16 divisors (see below), whose sum is σ = 616730112. Its totient is φ = 176666160.

The previous prime is 381707401. The next prime is 381707411. The reversal of 381707402 is 204707183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (381707401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132413 + ... + 135264.

It is an arithmetic number, because the mean of its divisors is an integer number (38545632).

Almost surely, 2^381707402 is an apocalyptic number.

381707402 is a deficient number, since it is larger than the sum of its proper divisors (235022710).

381707402 is a wasteful number, since it uses less digits than its factorization.

381707402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267733.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 381707402 is about 19537.3335437567. Note that the first 3 decimals coincide. The cubic root of 381707402 is about 725.3988464152.

The spelling of 381707402 in words is "three hundred eighty-one million, seven hundred seven thousand, four hundred two".