424021502 has 8 divisors (see below), whose sum is σ = 636439800. Its totient is φ = 211874904.

The previous prime is 424021489. The next prime is 424021541. The reversal of 424021502 is 205120424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63977 + ... + 70292.

It is an arithmetic number, because the mean of its divisors is an integer number (79554975).

Almost surely, 2^424021502 is an apocalyptic number.

424021502 is a deficient number, since it is larger than the sum of its proper divisors (212418298).

424021502 is a wasteful number, since it uses less digits than its factorization.

424021502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135850.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 424021502 is about 20591.7823900701. The cubic root of 424021502 is about 751.2698499466.

Adding to 424021502 its reverse (205120424), we get a palindrome (629141926).

The spelling of 424021502 in words is "four hundred twenty-four million, twenty-one thousand, five hundred two".