1241404393 has 4 divisors (see below), whose sum is σ = 1281449728. Its totient is φ = 1201359060.

The previous prime is 1241404337. The next prime is 1241404403. The reversal of 1241404393 is 3934041421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3934041421 = 2909 ⋅1352369.

It is a cyclic number.

It is not a de Polignac number, because 1241404393 - 2¹³ = 1241396201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 40045303 = 1241404393 / (1 + 2 + 4 + 1 + 4 + 0 + 4 + 3 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (1241404313) 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 3 ways as a sum of consecutive naturals, for example, 20022621 + ... + 20022682.

It is an arithmetic number, because the mean of its divisors is an integer number (320362432).

Almost surely, 2^1241404393 is an apocalyptic number.

It is an amenable number.

1241404393 is a deficient number, since it is larger than the sum of its proper divisors (40045335).

1241404393 is an equidigital number, since it uses as much as digits as its factorization.

1241404393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40045334.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1241404393 is about 35233.5691209392. The cubic root of 1241404393 is about 1074.7425070679.

The spelling of 1241404393 in words is "one billion, two hundred forty-one million, four hundred four thousand, three hundred ninety-three".