1403258401 has 4 divisors (see below), whose sum is σ = 1403686804. Its totient is φ = 1402830000.

The previous prime is 1403258327. The next prime is 1403258407. The reversal of 1403258401 is 1048523041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1048523041 = 769 ⋅1363489.

It can be written as a sum of positive squares in 2 ways, for example, as 919302400 + 483956001 = 30320^2 + 21999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403258401 - 2²⁷ = 1269040673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1403258401.

It is not an unprimeable number, because it can be changed into a prime (1403258407) 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 3 ways as a sum of consecutive naturals, for example, 209250 + ... + 215851.

It is an arithmetic number, because the mean of its divisors is an integer number (350921701).

Almost surely, 2^1403258401 is an apocalyptic number.

It is an amenable number.

1403258401 is a deficient number, since it is larger than the sum of its proper divisors (428403).

1403258401 is an equidigital number, since it uses as much as digits as its factorization.

1403258401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428402.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1403258401 is about 37460.0907767186. The cubic root of 1403258401 is about 1119.5561594351.

The spelling of 1403258401 in words is "one billion, four hundred three million, two hundred fifty-eight thousand, four hundred one".