2403438657 has 8 divisors (see below), whose sum is σ = 3223109184. Its totient is φ = 1593030288.

The previous prime is 2403438643. The next prime is 2403438683. The reversal of 2403438657 is 7568343042.

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

It is not a de Polignac number, because 2403438657 - 2²⁴ = 2386661441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2403438757) 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 7 ways as a sum of consecutive naturals, for example, 2314933 + ... + 2315970.

It is an arithmetic number, because the mean of its divisors is an integer number (402888648).

Almost surely, 2^2403438657 is an apocalyptic number.

It is an amenable number.

2403438657 is a deficient number, since it is larger than the sum of its proper divisors (819670527).

2403438657 is a wasteful number, since it uses less digits than its factorization.

2403438657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631079.

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 2403438657 is about 49024.8779396747. The cubic root of 2403438657 is about 1339.5050256596.

The spelling of 2403438657 in words is "two billion, four hundred three million, four hundred thirty-eight thousand, six hundred fifty-seven".