423153440 has 24 divisors (see below), whose sum is σ = 999700380. Its totient is φ = 169261312.

The previous prime is 423153421. The next prime is 423153469. The reversal of 423153440 is 44351324.

It can be written as a sum of positive squares in 2 ways, for example, as 371255824 + 51897616 = 19268^2 + 7204^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322195 + ... + 1322514.

Almost surely, 2^423153440 is an apocalyptic number.

423153440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423153440 is an abundant number, since it is smaller than the sum of its proper divisors (576546940).

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

423153440 is a wasteful number, since it uses less digits than its factorization.

423153440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644724 (or 2644716 counting only the distinct ones).

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

The square root of 423153440 is about 20570.6937170335. The cubic root of 423153440 is about 750.7568300948.

The spelling of 423153440 in words is "four hundred twenty-three million, one hundred fifty-three thousand, four hundred forty".