424021532 has 24 divisors (see below), whose sum is σ = 817849200. Its totient is φ = 190748160.

The previous prime is 424021489. The next prime is 424021541. The reversal of 424021532 is 235120424.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 424021498 and 424021507.

It is a congruent number.

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, 45407 + ... + 53942.

It is an arithmetic number, because the mean of its divisors is an integer number (34077050).

Almost surely, 2^424021532 is an apocalyptic number.

It is an amenable number.

424021532 is a deficient number, since it is larger than the sum of its proper divisors (393827668).

424021532 is a wasteful number, since it uses less digits than its factorization.

424021532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99461 (or 99459 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 424021532 is about 20591.7831185160. The cubic root of 424021532 is about 751.2698676643.

Adding to 424021532 its reverse (235120424), we get a palindrome (659141956).

It can be divided in two parts, 42402 and 1532, that added together give a palindrome (43934).

The spelling of 424021532 in words is "four hundred twenty-four million, twenty-one thousand, five hundred thirty-two".