420440792 has 16 divisors (see below), whose sum is σ = 801250800. Its totient is φ = 206773920.

The previous prime is 420440791. The next prime is 420440809. The reversal of 420440792 is 297044024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420440791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430292 + ... + 431267.

It is an arithmetic number, because the mean of its divisors is an integer number (50078175).

Almost surely, 2^420440792 is an apocalyptic number.

It is an amenable number.

420440792 is a deficient number, since it is larger than the sum of its proper divisors (380810008).

420440792 is a wasteful number, since it uses less digits than its factorization.

420440792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861626 (or 861622 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 420440792 is about 20504.6529353705. The cubic root of 420440792 is about 749.1491340308.

The spelling of 420440792 in words is "four hundred twenty million, four hundred forty thousand, seven hundred ninety-two".