424140405 has 16 divisors (see below), whose sum is σ = 730826880. Its totient is φ = 208807488.

The previous prime is 424140383. The next prime is 424140407. The reversal of 424140405 is 504041424.

It is a happy number.

It is not a de Polignac number, because 424140405 - 2⁵ = 424140373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424140407) 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, 1087345 + ... + 1087734.

It is an arithmetic number, because the mean of its divisors is an integer number (45676680).

Almost surely, 2^424140405 is an apocalyptic number.

It is an amenable number.

424140405 is a deficient number, since it is larger than the sum of its proper divisors (306686475).

424140405 is a wasteful number, since it uses less digits than its factorization.

424140405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175100.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 424140405 is about 20594.6693345633. The cubic root of 424140405 is about 751.3400664255.

Adding to 424140405 its reverse (504041424), we get a palindrome (928181829).

The spelling of 424140405 in words is "four hundred twenty-four million, one hundred forty thousand, four hundred five".