420340466 has 32 divisors (see below), whose sum is σ = 778850688. Its totient is φ = 165680640.

The previous prime is 420340441. The next prime is 420340493. The reversal of 420340466 is 664043024.

It is a happy number.

It is a super-2 number, since 2×420340466² = 353372214714194312, which contains 22 as substring.

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, 47426 + ... + 55586.

It is an arithmetic number, because the mean of its divisors is an integer number (24339084).

Almost surely, 2^420340466 is an apocalyptic number.

420340466 is a deficient number, since it is larger than the sum of its proper divisors (358510222).

420340466 is a wasteful number, since it uses less digits than its factorization.

420340466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 420340466 is about 20502.2063690716. The cubic root of 420340466 is about 749.0895417200.

The spelling of 420340466 in words is "four hundred twenty million, three hundred forty thousand, four hundred sixty-six".