420007404 has 48 divisors (see below), whose sum is σ = 1005903360. Its totient is φ = 136344000.

The previous prime is 420007397. The next prime is 420007433. The reversal of 420007404 is 404700024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86029 + ... + 90779.

It is an arithmetic number, because the mean of its divisors is an integer number (20956320).

Almost surely, 2^420007404 is an apocalyptic number.

It is an amenable number.

420007404 is an abundant number, since it is smaller than the sum of its proper divisors (585895956).

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

420007404 is a wasteful number, since it uses less digits than its factorization.

420007404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950 (or 4948 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 420007404 is about 20494.0821702266. The cubic root of 420007404 is about 748.8916393001.

Adding to 420007404 its reverse (404700024), we get a palindrome (824707428).

The spelling of 420007404 in words is "four hundred twenty million, seven thousand, four hundred four".