420406462 has 16 divisors (see below), whose sum is σ = 722782080. Its totient is φ = 179652888.

The previous prime is 420406457. The next prime is 420406463. The reversal of 420406462 is 264604024.

It is a self number, because there is not a number n which added to its sum of digits gives 420406462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420406463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38412 + ... + 48127.

It is an arithmetic number, because the mean of its divisors is an integer number (45173880).

Almost surely, 2^420406462 is an apocalyptic number.

420406462 is a deficient number, since it is larger than the sum of its proper divisors (302375618).

420406462 is a wasteful number, since it uses less digits than its factorization.

420406462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86895.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 420406462 is about 20503.8157912131. The cubic root of 420406462 is about 749.1287435341.

It can be divided in two parts, 4 and 20406462, that added together give a triangular number (20406466 = T₆₃₈₈).

The spelling of 420406462 in words is "four hundred twenty million, four hundred six thousand, four hundred sixty-two".