220003494 has 16 divisors (see below), whose sum is σ = 465889968. Its totient is φ = 69020672.

The previous prime is 220003471. The next prime is 220003513. The reversal of 220003494 is 494300022.

It is a happy number.

It is a super-3 number, since 3×220003494³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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, 1078347 + ... + 1078550.

It is an arithmetic number, because the mean of its divisors is an integer number (29118123).

Almost surely, 2^220003494 is an apocalyptic number.

220003494 is an abundant number, since it is smaller than the sum of its proper divisors (245886474).

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

220003494 is a wasteful number, since it uses less digits than its factorization.

220003494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156919.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 220003494 is about 14832.5147564397. The cubic root of 220003494 is about 603.6842695139.

The spelling of 220003494 in words is "two hundred twenty million, three thousand, four hundred ninety-four".