423050440 has 32 divisors (see below), whose sum is σ = 1007857080. Its totient is φ = 159265792.

The previous prime is 423050429. The next prime is 423050443. The reversal of 423050440 is 44050324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 421809444 + 1240996 = 20538^2 + 1114^2 .

It is not an unprimeable number, because it can be changed into a prime (423050443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310387 + ... + 311746.

Almost surely, 2^423050440 is an apocalyptic number.

423050440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423050440 is an abundant number, since it is smaller than the sum of its proper divisors (584806640).

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

423050440 is a wasteful number, since it uses less digits than its factorization.

423050440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622161 (or 622157 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 423050440 is about 20568.1900030119. The cubic root of 423050440 is about 750.6959111143.

The spelling of 423050440 in words is "four hundred twenty-three million, fifty thousand, four hundred forty".