420651846 has 16 divisors (see below), whose sum is σ = 934782000. Its totient is φ = 140217264.

The previous prime is 420651839. The next prime is 420651851. The reversal of 420651846 is 648156024.

It is a self number, because there is not a number n which added to its sum of digits gives 420651846.

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, 3894871 + ... + 3894978.

It is an arithmetic number, because the mean of its divisors is an integer number (58423875).

Almost surely, 2^420651846 is an apocalyptic number.

420651846 is an abundant number, since it is smaller than the sum of its proper divisors (514130154).

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

420651846 is a wasteful number, since it uses less digits than its factorization.

420651846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789860 (or 7789854 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 420651846 is about 20509.7987800953. The cubic root of 420651846 is about 749.2744663609.

The spelling of 420651846 in words is "four hundred twenty million, six hundred fifty-one thousand, eight hundred forty-six".