1671503540 has 48 divisors (see below), whose sum is σ = 4051361664. Its totient is φ = 567408000.

The previous prime is 1671503531. The next prime is 1671503579. The reversal of 1671503540 is 453051761.

1671503540 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1671503497 and 1671503506.

It is a congruent number.

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, 44966 + ... + 73245.

It is an arithmetic number, because the mean of its divisors is an integer number (84403368).

Almost surely, 2^1671503540 is an apocalyptic number.

1671503540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671503540 is an abundant number, since it is smaller than the sum of its proper divisors (2379858124).

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

1671503540 is a wasteful number, since it uses less digits than its factorization.

1671503540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118328 (or 118326 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1671503540 is about 40884.0254867350. The cubic root of 1671503540 is about 1186.7769432438.

The spelling of 1671503540 in words is "one billion, six hundred seventy-one million, five hundred three thousand, five hundred forty".