4149871492 has 12 divisors (see below), whose sum is σ = 7820911756. Its totient is φ = 1915325280.

The previous prime is 4149871489. The next prime is 4149871499. The reversal of 4149871492 is 2941789414.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1621189696 + 2528681796 = 40264^2 + 50286^2 .

It is a super-2 number, since 2×4149871492² = 34442866800228612128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4149871499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39902559 + ... + 39902662.

Almost surely, 2^4149871492 is an apocalyptic number.

It is an amenable number.

4149871492 is a deficient number, since it is larger than the sum of its proper divisors (3671040264).

4149871492 is a wasteful number, since it uses less digits than its factorization.

4149871492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79805238 (or 79805236 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 4149871492 is about 64419.4962103865. The cubic root of 4149871492 is about 1606.9839877785.

The spelling of 4149871492 in words is "four billion, one hundred forty-nine million, eight hundred seventy-one thousand, four hundred ninety-two".