1273673040 has 80 divisors (see below), whose sum is σ = 4084560000. Its totient is φ = 327932416.

The previous prime is 1273673003. The next prime is 1273673041. The reversal of 1273673040 is 403763721.

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

It is a junction number, because it is equal to n+sod(n) for n = 1273672992 and 1273673010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273673041) 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, 84540 + ... + 98459.

It is an arithmetic number, because the mean of its divisors is an integer number (51057000).

Almost surely, 2^1273673040 is an apocalyptic number.

1273673040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1273673040 is an abundant number, since it is smaller than the sum of its proper divisors (2810886960).

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

1273673040 is a wasteful number, since it uses less digits than its factorization.

1273673040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183044 (or 183038 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 1273673040 is about 35688.5561489954. The cubic root of 1273673040 is about 1083.9751313948.

The spelling of 1273673040 in words is "one billion, two hundred seventy-three million, six hundred seventy-three thousand, forty".