424642641 has 4 divisors (see below), whose sum is σ = 566190192. Its totient is φ = 283095092.

The previous prime is 424642639. The next prime is 424642651. The reversal of 424642641 is 146246424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 424642641 - 2¹ = 424642639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424642651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70773771 + ... + 70773776.

It is an arithmetic number, because the mean of its divisors is an integer number (141547548).

Almost surely, 2^424642641 is an apocalyptic number.

It is an amenable number.

424642641 is a deficient number, since it is larger than the sum of its proper divisors (141547551).

424642641 is a wasteful number, since it uses less digits than its factorization.

424642641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141547550.

The product of its digits is 36864, while the sum is 33.

The square root of 424642641 is about 20606.8590765308. The cubic root of 424642641 is about 751.6365100714.

The spelling of 424642641 in words is "four hundred twenty-four million, six hundred forty-two thousand, six hundred forty-one".