1293679420 has 24 divisors (see below), whose sum is σ = 2963702448. Its totient is φ = 470428800.

The previous prime is 1293679411. The next prime is 1293679421. The reversal of 1293679420 is 249763921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293679421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939961 + ... + 2940400.

It is an arithmetic number, because the mean of its divisors is an integer number (123487602).

Almost surely, 2^1293679420 is an apocalyptic number.

1293679420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293679420 is an abundant number, since it is smaller than the sum of its proper divisors (1670023028).

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

1293679420 is a wasteful number, since it uses less digits than its factorization.

1293679420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880381 (or 5880379 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1293679420 is about 35967.7552816408. The cubic root of 1293679420 is about 1089.6212302328.

The spelling of 1293679420 in words is "one billion, two hundred ninety-three million, six hundred seventy-nine thousand, four hundred twenty".