1403243424 has 144 divisors (see below), whose sum is σ = 4454914464. Its totient is φ = 415296000.

The previous prime is 1403243371. The next prime is 1403243477. The reversal of 1403243424 is 4243423041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1403243371) and next prime (1403243477).

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131074 + ... + 141374.

It is an arithmetic number, because the mean of its divisors is an integer number (30936906).

Almost surely, 2^1403243424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403243424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2227457232).

1403243424 is an abundant number, since it is smaller than the sum of its proper divisors (3051671040).

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

1403243424 is a wasteful number, since it uses less digits than its factorization.

1403243424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371 (or 10360 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1403243424 is about 37459.8908701027. The cubic root of 1403243424 is about 1119.5521764071.

Adding to 1403243424 its reverse (4243423041), we get a palindrome (5646666465).

The spelling of 1403243424 in words is "one billion, four hundred three million, two hundred forty-three thousand, four hundred twenty-four".