1839402148 has 6 divisors (see below), whose sum is σ = 3218953766. Its totient is φ = 919701072.

The previous prime is 1839402107. The next prime is 1839402167. The reversal of 1839402148 is 8412049381.

It can be written as a sum of positive squares in only one way, i.e., 1644464704 + 194937444 = 40552^2 + 13962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1839402148.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229925265 + ... + 229925272.

Almost surely, 2^1839402148 is an apocalyptic number.

It is an amenable number.

1839402148 is a deficient number, since it is larger than the sum of its proper divisors (1379551618).

1839402148 is a wasteful number, since it uses less digits than its factorization.

1839402148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459850541 (or 459850539 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1839402148 is about 42888.2518645841. The cubic root of 1839402148 is about 1225.2524034672.

The spelling of 1839402148 in words is "one billion, eight hundred thirty-nine million, four hundred two thousand, one hundred forty-eight".