673622540 has 24 divisors (see below), whose sum is σ = 1417509072. Its totient is φ = 268896320.

The previous prime is 673622539. The next prime is 673622549. The reversal of 673622540 is 45226376.

It is a self number, because there is not a number n which added to its sum of digits gives 673622540.

It is not an unprimeable number, because it can be changed into a prime (673622549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24479 + ... + 44118.

It is an arithmetic number, because the mean of its divisors is an integer number (59062878).

Almost surely, 2^673622540 is an apocalyptic number.

It is an amenable number.

673622540 is an abundant number, since it is smaller than the sum of its proper divisors (743886532).

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

673622540 is a wasteful number, since it uses less digits than its factorization.

673622540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69097 (or 69095 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 673622540 is about 25954.2393454326. The cubic root of 673622540 is about 876.6082162273.

The spelling of 673622540 in words is "six hundred seventy-three million, six hundred twenty-two thousand, five hundred forty".