1273376028 has 24 divisors (see below), whose sum is σ = 3040309888. Its totient is φ = 414587376.

The previous prime is 1273376023. The next prime is 1273376033. The reversal of 1273376028 is 8206733721.

1273376028 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1273376023) and next prime (1273376033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273376023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233376 + ... + 1234407.

Almost surely, 2^1273376028 is an apocalyptic number.

It is an amenable number.

1273376028 is an abundant number, since it is smaller than the sum of its proper divisors (1766933860).

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

1273376028 is a wasteful number, since it uses less digits than its factorization.

1273376028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467833 (or 2467831 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1273376028 is about 35684.3947405585. The cubic root of 1273376028 is about 1083.8908662706.

The spelling of 1273376028 in words is "one billion, two hundred seventy-three million, three hundred seventy-six thousand, twenty-eight".