1258671380 has 48 divisors (see below), whose sum is σ = 2693139456. Its totient is φ = 494017920.

The previous prime is 1258671353. The next prime is 1258671409. The reversal of 1258671380 is 831768521.

It is a super-2 number, since 2×1258671380² = 3168507285662208800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369485 + ... + 372875.

It is an arithmetic number, because the mean of its divisors is an integer number (56107072).

Almost surely, 2^1258671380 is an apocalyptic number.

1258671380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1258671380 is an abundant number, since it is smaller than the sum of its proper divisors (1434468076).

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

1258671380 is a wasteful number, since it uses less digits than its factorization.

1258671380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1258671380 is about 35477.7589483891. The cubic root of 1258671380 is about 1079.7025300995.

The spelling of 1258671380 in words is "one billion, two hundred fifty-eight million, six hundred seventy-one thousand, three hundred eighty".