424409400 has 72 divisors (see below), whose sum is σ = 1425314280. Its totient is φ = 113175360.

The previous prime is 424409399. The next prime is 424409407. The reversal of 424409400 is 4904424.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424409407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 116092 + ... + 119691.

Almost surely, 2^424409400 is an apocalyptic number.

424409400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424409400 is an abundant number, since it is smaller than the sum of its proper divisors (1000904880).

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

424409400 is a wasteful number, since it uses less digits than its factorization.

424409400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235805 (or 235793 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 424409400 is about 20601.1989942333. The cubic root of 424409400 is about 751.4988691927.

The spelling of 424409400 in words is "four hundred twenty-four million, four hundred nine thousand, four hundred".