424475394 has 16 divisors (see below), whose sum is σ = 970229568. Its totient is φ = 121278672.

The previous prime is 424475383. The next prime is 424475399. The reversal of 424475394 is 493574424.

It is a super-2 number, since 2×424475394² = 360358720222910472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 10106557 = 424475394 / (4 + 2 + 4 + 4 + 7 + 5 + 3 + 9 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (424475399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5053237 + ... + 5053320.

It is an arithmetic number, because the mean of its divisors is an integer number (60639348).

Almost surely, 2^424475394 is an apocalyptic number.

424475394 is an abundant number, since it is smaller than the sum of its proper divisors (545754174).

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

424475394 is a wasteful number, since it uses less digits than its factorization.

424475394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106569.

The product of its digits is 483840, while the sum is 42.

The square root of 424475394 is about 20602.8006348652. The cubic root of 424475394 is about 751.5378188845.

The spelling of 424475394 in words is "four hundred twenty-four million, four hundred seventy-five thousand, three hundred ninety-four".