1671572441 has 48 divisors (see below), whose sum is σ = 2191408128. Its totient is φ = 1238462400.

The previous prime is 1671572407. The next prime is 1671572471. The reversal of 1671572441 is 1442751761.

It is a de Polignac number, because none of the positive numbers 2^k-1671572441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1671572395 and 1671572404.

It is not an unprimeable number, because it can be changed into a prime (1671572471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5374676 + ... + 5374986.

It is an arithmetic number, because the mean of its divisors is an integer number (45654336).

Almost surely, 2^1671572441 is an apocalyptic number.

1671572441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1671572441 is a deficient number, since it is larger than the sum of its proper divisors (519835687).

1671572441 is a wasteful number, since it uses less digits than its factorization.

1671572441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 441 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 1671572441 is about 40884.8681176789. The cubic root of 1671572441 is about 1186.7932497194.

The spelling of 1671572441 in words is "one billion, six hundred seventy-one million, five hundred seventy-two thousand, four hundred forty-one".