4217542138 has 16 divisors (see below), whose sum is σ = 7051000320. Its totient is φ = 1880266176.

The previous prime is 4217542129. The next prime is 4217542247. The reversal of 4217542138 is 8312457124.

It is a super-2 number, since 2×4217542138² = 35575323371611222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4217542097 and 4217542106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3263706 + ... + 3264997.

It is an arithmetic number, because the mean of its divisors is an integer number (440687520).

Almost surely, 2^4217542138 is an apocalyptic number.

4217542138 is a deficient number, since it is larger than the sum of its proper divisors (2833458182).

4217542138 is a wasteful number, since it uses less digits than its factorization.

4217542138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528741.

The product of its digits is 53760, while the sum is 37.

The square root of 4217542138 is about 64942.6064921943. The cubic root of 4217542138 is about 1615.6717948168.

The spelling of 4217542138 in words is "four billion, two hundred seventeen million, five hundred forty-two thousand, one hundred thirty-eight".