4138550 has 24 divisors (see below), whose sum is σ = 8291136. Its totient is φ = 1527840.

The previous prime is 4138543. The next prime is 4138567. The reversal of 4138550 is 558314.

It is a super-2 number, since 2×4138550² = 34255192205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2534 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (345464).

Almost surely, 2^4138550 is an apocalyptic number.

4138550 is an abundant number, since it is smaller than the sum of its proper divisors (4152586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4138550 is a wasteful number, since it uses less digits than its factorization.

4138550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392 (or 6387 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 4138550 is about 2034.3426456721. The cubic root of 4138550 is about 160.5521289767.

The spelling of 4138550 in words is "four million, one hundred thirty-eight thousand, five hundred fifty".