420994694 has 8 divisors (see below), whose sum is σ = 651862848. Its totient is φ = 203707080.

The previous prime is 420994687. The next prime is 420994699. The reversal of 420994694 is 496499024.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420994699) 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, 3395057 + ... + 3395180.

It is an arithmetic number, because the mean of its divisors is an integer number (81482856).

Almost surely, 2^420994694 is an apocalyptic number.

420994694 is a deficient number, since it is larger than the sum of its proper divisors (230868154).

420994694 is a wasteful number, since it uses less digits than its factorization.

420994694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790270.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 420994694 is about 20518.1552289673. The cubic root of 420994694 is about 749.4779739212.

The spelling of 420994694 in words is "four hundred twenty million, nine hundred ninety-four thousand, six hundred ninety-four".