2438918506 has 4 divisors (see below), whose sum is σ = 3658377762. Its totient is φ = 1219459252.

The previous prime is 2438918431. The next prime is 2438918507. The reversal of 2438918506 is 6058198342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1562225625 + 876692881 = 39525^2 + 29609^2 .

It is not an unprimeable number, because it can be changed into a prime (2438918507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609729625 + ... + 609729628.

Almost surely, 2^2438918506 is an apocalyptic number.

2438918506 is a deficient number, since it is larger than the sum of its proper divisors (1219459256).

2438918506 is a wasteful number, since it uses less digits than its factorization.

2438918506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219459255.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 2438918506 is about 49385.4078245791. The cubic root of 2438918506 is about 1346.0641663068.

The spelling of 2438918506 in words is "two billion, four hundred thirty-eight million, nine hundred eighteen thousand, five hundred six".