1293449421 has 8 divisors (see below), whose sum is σ = 1881381024. Its totient is φ = 783908720.

The previous prime is 1293449411. The next prime is 1293449431. The reversal of 1293449421 is 1249443921.

It is an interprime number because it is at equal distance from previous prime (1293449411) and next prime (1293449431).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1293449421 - 2¹⁸ = 1293187277 is a prime.

It is a super-2 number, since 2×1293449421² = 3346022809370470482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1293449421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293449411) 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, 19597686 + ... + 19597751.

It is an arithmetic number, because the mean of its divisors is an integer number (235172628).

Almost surely, 2^1293449421 is an apocalyptic number.

1293449421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1293449421 is a deficient number, since it is larger than the sum of its proper divisors (587931603).

1293449421 is a wasteful number, since it uses less digits than its factorization.

1293449421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39195451.

The product of its digits is 62208, while the sum is 39.

The square root of 1293449421 is about 35964.5578451898. The cubic root of 1293449421 is about 1089.5566530166.

The spelling of 1293449421 in words is "one billion, two hundred ninety-three million, four hundred forty-nine thousand, four hundred twenty-one".