1293750020 has 24 divisors (see below), whose sum is σ = 2728252800. Its totient is φ = 515332832.

The previous prime is 1293750011. The next prime is 1293750041. The reversal of 1293750020 is 200573921.

It is a super-2 number, since 2×1293750020² = 3347578228500000800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 130550 + ... + 140109.

It is an arithmetic number, because the mean of its divisors is an integer number (113677200).

Almost surely, 2^1293750020 is an apocalyptic number.

1293750020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293750020 is an abundant number, since it is smaller than the sum of its proper divisors (1434502780).

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

1293750020 is a wasteful number, since it uses less digits than its factorization.

1293750020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270907 (or 270905 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1293750020 is about 35968.7367028646. The cubic root of 1293750020 is about 1089.6410511813.

The spelling of 1293750020 in words is "one billion, two hundred ninety-three million, seven hundred fifty thousand, twenty".