404425250420 has 72 divisors (see below), whose sum is σ = 916464514560. Its totient is φ = 149744992320.

The previous prime is 404425250363. The next prime is 404425250477. The reversal of 404425250420 is 24052524404.

It is an interprime number because it is at equal distance from previous prime (404425250363) and next prime (404425250477).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288560 + ... + 944519.

Almost surely, 2^404425250420 is an apocalyptic number.

It is an amenable number.

404425250420 is an abundant number, since it is smaller than the sum of its proper divisors (512039264140).

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

404425250420 is a wasteful number, since it uses less digits than its factorization.

404425250420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233165 (or 1233140 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 404425250420 its reverse (24052524404), we get a palindrome (428477774824).

The spelling of 404425250420 in words is "four hundred four billion, four hundred twenty-five million, two hundred fifty thousand, four hundred twenty".