1673570640 has 80 divisors (see below), whose sum is σ = 5929227648. Its totient is φ = 382530048.

The previous prime is 1673570617. The next prime is 1673570641. The reversal of 1673570640 is 460753761.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673570641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496407 + ... + 499766.

Almost surely, 2^1673570640 is an apocalyptic number.

1673570640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673570640 is an abundant number, since it is smaller than the sum of its proper divisors (4255657008).

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

1673570640 is a wasteful number, since it uses less digits than its factorization.

1673570640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996196 (or 996190 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 1673570640 is about 40909.2977206894. The cubic root of 1673570640 is about 1187.2659592691.

The spelling of 1673570640 in words is "one billion, six hundred seventy-three million, five hundred seventy thousand, six hundred forty".