2403538 has 12 divisors (see below), whose sum is σ = 3806190. Its totient is φ = 1138176.

The previous prime is 2403521. The next prime is 2403547. The reversal of 2403538 is 8353042.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 263169 = 1463^2 + 513^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 943 + ... + 2386.

2^2403538 is an apocalyptic number.

2403538 is a deficient number, since it is larger than the sum of its proper divisors (1402652).

2403538 is a wasteful number, since it uses less digits than its factorization.

2403538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2403538 is about 1550.3348025507. The cubic root of 2403538 is about 133.9523480969.

The spelling of 2403538 in words is "two million, four hundred three thousand, five hundred thirty-eight".