420766694 has 8 divisors (see below), whose sum is σ = 668276568. Its totient is φ = 198007840.

The previous prime is 420766691. The next prime is 420766721. The reversal of 420766694 is 496667024.

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

It is a super-2 number, since 2×420766694² = 354089221559379272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420766691) 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, 6187712 + ... + 6187779.

It is an arithmetic number, because the mean of its divisors is an integer number (83534571).

Almost surely, 2^420766694 is an apocalyptic number.

420766694 is a deficient number, since it is larger than the sum of its proper divisors (247509874).

420766694 is a wasteful number, since it uses less digits than its factorization.

420766694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375510.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 420766694 is about 20512.5984214580. The cubic root of 420766694 is about 749.3426500972.

The spelling of 420766694 in words is "four hundred twenty million, seven hundred sixty-six thousand, six hundred ninety-four".