424770642 has 40 divisors (see below), whose sum is σ = 954974592. Its totient is φ = 141118200.

The previous prime is 424770617. The next prime is 424770659. The reversal of 424770642 is 246077424.

It is a happy number.

424770642 is a `hidden beast` number, since 4 + 2 + 4 + 7 + 7 + 0 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 424770597 and 424770606.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46167 + ... + 54597.

Almost surely, 2^424770642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424770642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477487296).

424770642 is an abundant number, since it is smaller than the sum of its proper divisors (530203950).

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

424770642 is a wasteful number, since it uses less digits than its factorization.

424770642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756 (or 8747 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 424770642 is about 20609.9646287906. The cubic root of 424770642 is about 751.7120249870.

The spelling of 424770642 in words is "four hundred twenty-four million, seven hundred seventy thousand, six hundred forty-two".