1949642372 has 6 divisors (see below), whose sum is σ = 3411874158. Its totient is φ = 974821184.

The previous prime is 1949642353. The next prime is 1949642419. The reversal of 1949642372 is 2732469491.

It can be written as a sum of positive squares in only one way, i.e., 1582766656 + 366875716 = 39784^2 + 19154^2 .

It is a super-2 number, since 2×1949642372² = 7602210757395572768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243705293 + ... + 243705300.

It is an arithmetic number, because the mean of its divisors is an integer number (568645693).

Almost surely, 2^1949642372 is an apocalyptic number.

It is an amenable number.

1949642372 is a deficient number, since it is larger than the sum of its proper divisors (1462231786).

1949642372 is a wasteful number, since it uses less digits than its factorization.

1949642372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487410597 (or 487410595 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 1949642372 is about 44154.7548062493. The cubic root of 1949642372 is about 1249.2565973296.

The spelling of 1949642372 in words is "one billion, nine hundred forty-nine million, six hundred forty-two thousand, three hundred seventy-two".