424021040 has 40 divisors (see below), whose sum is σ = 988738800. Its totient is φ = 169111296.

The previous prime is 424021033. The next prime is 424021063. The reversal of 424021040 is 40120424.

It is a tau number, because it is divible by the number of its divisors (40).

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, 20327 + ... + 35513.

It is an arithmetic number, because the mean of its divisors is an integer number (24718470).

Almost surely, 2^424021040 is an apocalyptic number.

424021040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424021040 is an abundant number, since it is smaller than the sum of its proper divisors (564717760).

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

424021040 is a wasteful number, since it uses less digits than its factorization.

424021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15549 (or 15543 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 424021040 is about 20591.7711719998. The cubic root of 424021040 is about 751.2695770934.

Adding to 424021040 its reverse (40120424), we get a palindrome (464141464).

The spelling of 424021040 in words is "four hundred twenty-four million, twenty-one thousand, forty".