424425387 has 4 divisors (see below), whose sum is σ = 565900520. Its totient is φ = 282950256.

The previous prime is 424425377. The next prime is 424425389. The reversal of 424425387 is 783524424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 424425387 - 2²³ = 416036779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424425389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70737562 + ... + 70737567.

It is an arithmetic number, because the mean of its divisors is an integer number (141475130).

Almost surely, 2^424425387 is an apocalyptic number.

424425387 is a deficient number, since it is larger than the sum of its proper divisors (141475133).

424425387 is a wasteful number, since it uses less digits than its factorization.

424425387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141475132.

The product of its digits is 215040, while the sum is 39.

The square root of 424425387 is about 20601.5870019763. The cubic root of 424425387 is about 751.5083050987.

The spelling of 424425387 in words is "four hundred twenty-four million, four hundred twenty-five thousand, three hundred eighty-seven".