1671261952 has 18 divisors (see below), whose sum is σ = 3335996048. Its totient is φ = 835630848.

The previous prime is 1671261947. The next prime is 1671261979. The reversal of 1671261952 is 2591621761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3263928 + ... + 3264439.

Almost surely, 2^1671261952 is an apocalyptic number.

It is an amenable number.

1671261952 is a deficient number, since it is larger than the sum of its proper divisors (1664734096).

1671261952 is an frugal number, since it uses more digits than its factorization.

1671261952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528383 (or 6528369 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 1671261952 is about 40881.0708274624. The cubic root of 1671261952 is about 1186.7197642080.

The spelling of 1671261952 in words is "one billion, six hundred seventy-one million, two hundred sixty-one thousand, nine hundred fifty-two".