220240438 has 64 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 90720000.

The previous prime is 220240429. The next prime is 220240441. The reversal of 220240438 is 834042022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216708 + ... + 1216888.

It is an arithmetic number, because the mean of its divisors is an integer number (6191640).

Almost surely, 2^220240438 is an apocalyptic number.

220240438 is a deficient number, since it is larger than the sum of its proper divisors (176024522).

220240438 is a wasteful number, since it uses less digits than its factorization.

220240438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 220240438 is about 14840.4999241939. The cubic root of 220240438 is about 603.9009146263.

The spelling of 220240438 in words is "two hundred twenty million, two hundred forty thousand, four hundred thirty-eight".