1671256104 has 64 divisors (see below), whose sum is σ = 4891501440. Its totient is φ = 465853440.

The previous prime is 1671256099. The next prime is 1671256163. The reversal of 1671256104 is 4016521761.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114429 + ... + 128204.

It is an arithmetic number, because the mean of its divisors is an integer number (76429710).

Almost surely, 2^1671256104 is an apocalyptic number.

1671256104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1671256104 is an abundant number, since it is smaller than the sum of its proper divisors (3220245336).

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

1671256104 is a wasteful number, since it uses less digits than its factorization.

1671256104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242690 (or 242686 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1671256104 is about 40880.9993028546. Note that the first 3 decimals coincide. The cubic root of 1671256104 is about 1186.7183800354.

Adding to 1671256104 its reverse (4016521761), we get a palindrome (5687777865).

The spelling of 1671256104 in words is "one billion, six hundred seventy-one million, two hundred fifty-six thousand, one hundred four".