424121401 has 24 divisors (see below), whose sum is σ = 495784800. Its totient is φ = 358776000.

The previous prime is 424121377. The next prime is 424121407. The reversal of 424121401 is 104121424.

It is not a de Polignac number, because 424121401 - 2²¹ = 422024249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424121407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2808676 + ... + 2808826.

It is an arithmetic number, because the mean of its divisors is an integer number (20657700).

Almost surely, 2^424121401 is an apocalyptic number.

It is an amenable number.

424121401 is a deficient number, since it is larger than the sum of its proper divisors (71663399).

424121401 is a wasteful number, since it uses less digits than its factorization.

424121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 424121401 is about 20594.2079478673. The cubic root of 424121401 is about 751.3288447642.

Adding to 424121401 its reverse (104121424), we get a palindrome (528242825).

The spelling of 424121401 in words is "four hundred twenty-four million, one hundred twenty-one thousand, four hundred one".