1949126392 has 8 divisors (see below), whose sum is σ = 3654612000. Its totient is φ = 974563192.

The previous prime is 1949126369. The next prime is 1949126393. The reversal of 1949126392 is 2936219491.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949126393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121820392 + ... + 121820407.

It is an arithmetic number, because the mean of its divisors is an integer number (456826500).

Almost surely, 2^1949126392 is an apocalyptic number.

It is an amenable number.

1949126392 is a deficient number, since it is larger than the sum of its proper divisors (1705485608).

1949126392 is a wasteful number, since it uses less digits than its factorization.

1949126392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243640805 (or 243640801 counting only the distinct ones).

The product of its digits is 209952, while the sum is 46.

The square root of 1949126392 is about 44148.9115607622. The cubic root of 1949126392 is about 1249.1463808268.

The spelling of 1949126392 in words is "one billion, nine hundred forty-nine million, one hundred twenty-six thousand, three hundred ninety-two".