1949521236 has 48 divisors (see below), whose sum is σ = 4960838400. Its totient is φ = 592255872.

The previous prime is 1949521187. The next prime is 1949521241. The reversal of 1949521236 is 6321259491.

It is a super-2 number, since 2×1949521236² = 7601266099229935392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66771 + ... + 91418.

It is an arithmetic number, because the mean of its divisors is an integer number (103350800).

Almost surely, 2^1949521236 is an apocalyptic number.

It is an amenable number.

1949521236 is an abundant number, since it is smaller than the sum of its proper divisors (3011317164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1949521236 is a wasteful number, since it uses less digits than its factorization.

1949521236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158288 (or 158286 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 1949521236 is about 44153.3830640416. The cubic root of 1949521236 is about 1249.2307236816.

The spelling of 1949521236 in words is "one billion, nine hundred forty-nine million, five hundred twenty-one thousand, two hundred thirty-six".