4540198 has 32 divisors (see below), whose sum is σ = 7805952. Its totient is φ = 1965600.

The previous prime is 4540189. The next prime is 4540201. The reversal of 4540198 is 8910454.

It is a happy number.

It is a super-2 number, since 2×4540198² = 41226795758408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34593 + ... + 34723.

It is an arithmetic number, because the mean of its divisors is an integer number (243936).

Almost surely, 2^4540198 is an apocalyptic number.

4540198 is a deficient number, since it is larger than the sum of its proper divisors (3265754).

4540198 is a wasteful number, since it uses less digits than its factorization.

4540198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4540198 is about 2130.7740377619. The cubic root of 4540198 is about 165.5865016964.

The spelling of 4540198 in words is "four million, five hundred forty thousand, one hundred ninety-eight".