1671054440 has 64 divisors (see below), whose sum is σ = 4342973760. Its totient is φ = 571909120.

The previous prime is 1671054439. The next prime is 1671054479. The reversal of 1671054440 is 444501761.

It is a junction number, because it is equal to n+sod(n) for n = 1671054397 and 1671054406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104222 + ... + 119181.

It is an arithmetic number, because the mean of its divisors is an integer number (67858965).

Almost surely, 2^1671054440 is an apocalyptic number.

1671054440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671054440 is an abundant number, since it is smaller than the sum of its proper divisors (2671919320).

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

1671054440 is a wasteful number, since it uses less digits than its factorization.

1671054440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223442 (or 223438 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1671054440 is about 40878.5327525341. The cubic root of 1671054440 is about 1186.6706458787.

The spelling of 1671054440 in words is "one billion, six hundred seventy-one million, fifty-four thousand, four hundred forty".