420203004 has 24 divisors (see below), whose sum is σ = 1055895120. Its totient is φ = 129293184.

The previous prime is 420202999. The next prime is 420203033. The reversal of 420203004 is 400302024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346649 + ... + 1346960.

It is an arithmetic number, because the mean of its divisors is an integer number (43995630).

Almost surely, 2^420203004 is an apocalyptic number.

It is an amenable number.

420203004 is an abundant number, since it is smaller than the sum of its proper divisors (635692116).

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

420203004 is a wasteful number, since it uses less digits than its factorization.

420203004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693629 (or 2693627 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 420203004 is about 20498.8537240500. The cubic root of 420203004 is about 749.0078757201.

Adding to 420203004 its reverse (400302024), we get a palindrome (820505028).

The spelling of 420203004 in words is "four hundred twenty million, two hundred three thousand, four".