1949953972 has 6 divisors (see below), whose sum is σ = 3412419458. Its totient is φ = 974976984.

The previous prime is 1949953949. The next prime is 1949953987. The reversal of 1949953972 is 2793599491.

It can be written as a sum of positive squares in only one way, i.e., 1364120356 + 585833616 = 36934^2 + 24204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243744243 + ... + 243744250.

Almost surely, 2^1949953972 is an apocalyptic number.

It is an amenable number.

1949953972 is a deficient number, since it is larger than the sum of its proper divisors (1462465486).

1949953972 is a wasteful number, since it uses less digits than its factorization.

1949953972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487488497 (or 487488495 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 58.

The square root of 1949953972 is about 44158.2831640905. The cubic root of 1949953972 is about 1249.3231475895.

The spelling of 1949953972 in words is "one billion, nine hundred forty-nine million, nine hundred fifty-three thousand, nine hundred seventy-two".