2479638398 has 8 divisors (see below), whose sum is σ = 3819983592. Its totient is φ = 1206310536.

The previous prime is 2479638397. The next prime is 2479638431. The reversal of 2479638398 is 8938369742.

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

It is a super-2 number, since 2×2479638398² = 12297213169672012808, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479638391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16754240 + ... + 16754387.

It is an arithmetic number, because the mean of its divisors is an integer number (477497949).

Almost surely, 2^2479638398 is an apocalyptic number.

2479638398 is a deficient number, since it is larger than the sum of its proper divisors (1340345194).

2479638398 is a wasteful number, since it uses less digits than its factorization.

2479638398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33508666.

The product of its digits is 15676416, while the sum is 59.

The square root of 2479638398 is about 49795.9676881572. The cubic root of 2479638398 is about 1353.5140999663.

The spelling of 2479638398 in words is "two billion, four hundred seventy-nine million, six hundred thirty-eight thousand, three hundred ninety-eight".