424332240 has 80 divisors (see below), whose sum is σ = 1392821568. Its totient is φ = 106498048.

The previous prime is 424332217. The next prime is 424332253. The reversal of 424332240 is 42233424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 424332240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47922 + ... + 56081.

Almost surely, 2^424332240 is an apocalyptic number.

424332240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424332240 is an abundant number, since it is smaller than the sum of its proper divisors (968489328).

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

424332240 is a wasteful number, since it uses less digits than its factorization.

424332240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104036 (or 104030 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 424332240 is about 20599.3262025727. The cubic root of 424332240 is about 751.4533242015.

Adding to 424332240 its reverse (42233424), we get a palindrome (466565664).

The spelling of 424332240 in words is "four hundred twenty-four million, three hundred thirty-two thousand, two hundred forty".