424020401 has 16 divisors (see below), whose sum is σ = 497242368. Its totient is φ = 353990400.

The previous prime is 424020383. The next prime is 424020437. The reversal of 424020401 is 104020424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424020401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424020401.

It is not an unprimeable number, because it can be changed into a prime (424020101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295181 + ... + 296613.

It is an arithmetic number, because the mean of its divisors is an integer number (31077648).

Almost surely, 2^424020401 is an apocalyptic number.

424020401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

424020401 is a deficient number, since it is larger than the sum of its proper divisors (73221967).

424020401 is a wasteful number, since it uses less digits than its factorization.

424020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 424020401 is about 20591.7556560872. The cubic root of 424020401 is about 751.2691997053.

Adding to 424020401 its reverse (104020424), we get a palindrome (528040825).

The spelling of 424020401 in words is "four hundred twenty-four million, twenty thousand, four hundred one".