2438261858 has 8 divisors (see below), whose sum is σ = 3691574352. Its totient is φ = 1207737076.

The previous prime is 2438261741. The next prime is 2438261869. The reversal of 2438261858 is 8581628342.

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

It is a super-2 number, since 2×2438261858² = 11890241776355224328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5696660 + ... + 5697087.

It is an arithmetic number, because the mean of its divisors is an integer number (461446794).

Almost surely, 2^2438261858 is an apocalyptic number.

2438261858 is a deficient number, since it is larger than the sum of its proper divisors (1253312494).

2438261858 is a wasteful number, since it uses less digits than its factorization.

2438261858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393856.

The product of its digits is 737280, while the sum is 47.

The square root of 2438261858 is about 49378.7591784160. The cubic root of 2438261858 is about 1345.9433518723.

The spelling of 2438261858 in words is "two billion, four hundred thirty-eight million, two hundred sixty-one thousand, eight hundred fifty-eight".