420694473 has 8 divisors (see below), whose sum is σ = 561196288. Its totient is φ = 280327824.

The previous prime is 420694451. The next prime is 420694493. The reversal of 420694473 is 374496024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420694473 - 2⁵ = 420694441 is a prime.

It is a super-2 number, since 2×420694473² = 353967679225495458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420694433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26290 + ... + 39147.

It is an arithmetic number, because the mean of its divisors is an integer number (70149536).

Almost surely, 2^420694473 is an apocalyptic number.

It is an amenable number.

420694473 is a deficient number, since it is larger than the sum of its proper divisors (140501815).

420694473 is a wasteful number, since it uses less digits than its factorization.

420694473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67583.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 420694473 is about 20510.8379399770. The cubic root of 420694473 is about 749.2997748943.

The spelling of 420694473 in words is "four hundred twenty million, six hundred ninety-four thousand, four hundred seventy-three".