3871249402 has 8 divisors (see below), whose sum is σ = 5864368212. Its totient is φ = 1916460000.

The previous prime is 3871249387. The next prime is 3871249429. The reversal of 3871249402 is 2049421783.

It can be written as a sum of positive squares in 2 ways, for example, as 3715024401 + 156225001 = 60951^2 + 12499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9582099 + ... + 9582502.

Almost surely, 2^3871249402 is an apocalyptic number.

3871249402 is a deficient number, since it is larger than the sum of its proper divisors (1993118810).

3871249402 is a wasteful number, since it uses less digits than its factorization.

3871249402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164704.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3871249402 is about 62219.3651687318. The cubic root of 3871249402 is about 1570.1834075158.

The spelling of 3871249402 in words is "three billion, eight hundred seventy-one million, two hundred forty-nine thousand, four hundred two".