1258374740 has 24 divisors (see below), whose sum is σ = 3020099712. Its totient is φ = 431442720.

The previous prime is 1258374721. The next prime is 1258374743. The reversal of 1258374740 is 474738521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258374743) 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, 4494056 + ... + 4494335.

It is an arithmetic number, because the mean of its divisors is an integer number (125837488).

Almost surely, 2^1258374740 is an apocalyptic number.

1258374740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1258374740 is an abundant number, since it is smaller than the sum of its proper divisors (1761724972).

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

1258374740 is a wasteful number, since it uses less digits than its factorization.

1258374740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988407 (or 8988405 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 1258374740 is about 35473.5780546592. The cubic root of 1258374740 is about 1079.6177030541.

The spelling of 1258374740 in words is "one billion, two hundred fifty-eight million, three hundred seventy-four thousand, seven hundred forty".