420373994 has 8 divisors (see below), whose sum is σ = 667652868. Its totient is φ = 197823040.

The previous prime is 420373991. The next prime is 420373999. The reversal of 420373994 is 499373024.

It can be written as a sum of positive squares in 2 ways, for example, as 417180625 + 3193369 = 20425^2 + 1787^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420373991) 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, 6181937 + ... + 6182004.

Almost surely, 2^420373994 is an apocalyptic number.

420373994 is a deficient number, since it is larger than the sum of its proper divisors (247278874).

420373994 is a wasteful number, since it uses less digits than its factorization.

420373994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363960.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 420373994 is about 20503.0240208609. The cubic root of 420373994 is about 749.1094579613.

The spelling of 420373994 in words is "four hundred twenty million, three hundred seventy-three thousand, nine hundred ninety-four".