1673634140 has 24 divisors (see below), whose sum is σ = 3529225392. Its totient is φ = 666673920.

The previous prime is 1673634103. The next prime is 1673634163. The reversal of 1673634140 is 414363761.

It is a self number, because there is not a number n which added to its sum of digits gives 1673634140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168794 + ... + 178433.

It is an arithmetic number, because the mean of its divisors is an integer number (147051058).

Almost surely, 2^1673634140 is an apocalyptic number.

1673634140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673634140 is an abundant number, since it is smaller than the sum of its proper divisors (1855591252).

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

1673634140 is a wasteful number, since it uses less digits than its factorization.

1673634140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347477 (or 347475 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1673634140 is about 40910.0738205152. The cubic root of 1673634140 is about 1187.2809751545.

The spelling of 1673634140 in words is "one billion, six hundred seventy-three million, six hundred thirty-four thousand, one hundred forty".