673420540 has 24 divisors (see below), whose sum is σ = 1522967040. Its totient is φ = 248647488.

The previous prime is 673420523. The next prime is 673420567. The reversal of 673420540 is 45024376.

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, 1294780 + ... + 1295299.

It is an arithmetic number, because the mean of its divisors is an integer number (63456960).

Almost surely, 2^673420540 is an apocalyptic number.

It is an amenable number.

673420540 is an abundant number, since it is smaller than the sum of its proper divisors (849546500).

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

673420540 is a wasteful number, since it uses less digits than its factorization.

673420540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590101 (or 2590099 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 673420540 is about 25950.3475891943. The cubic root of 673420540 is about 876.5205842811.

The spelling of 673420540 in words is "six hundred seventy-three million, four hundred twenty thousand, five hundred forty".