42203456 has 28 divisors (see below), whose sum is σ = 84589620. Its totient is φ = 20889600.

The previous prime is 42203449. The next prime is 42203461. The reversal of 42203456 is 65430224.

42203456 = T₃₆₉ + T₃₇₀ + ... + T₆₇₁.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 19009600 = 4816^2 + 4360^2 .

It is a super-2 number, since 2×42203456² = 3562263396687872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3200 + ... + 9728.

Almost surely, 2^42203456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42203456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42294810).

42203456 is an abundant number, since it is smaller than the sum of its proper divisors (42386164).

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

42203456 is a wasteful number, since it uses less digits than its factorization.

42203456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42203456 is about 6496.4187057178. The cubic root of 42203456 is about 348.1630451025.

The spelling of 42203456 in words is "forty-two million, two hundred three thousand, four hundred fifty-six".