420974630 has 8 divisors (see below), whose sum is σ = 757754352. Its totient is φ = 168389848.

The previous prime is 420974627. The next prime is 420974639. The reversal of 420974630 is 36479024.

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 (420974639) 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, 21048722 + ... + 21048741.

It is an arithmetic number, because the mean of its divisors is an integer number (94719294).

Almost surely, 2^420974630 is an apocalyptic number.

420974630 is a deficient number, since it is larger than the sum of its proper divisors (336779722).

420974630 is a wasteful number, since it uses less digits than its factorization.

420974630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42097470.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 420974630 is about 20517.6662902972. Note that the first 3 decimals coincide. The cubic root of 420974630 is about 749.4660673856.

The spelling of 420974630 in words is "four hundred twenty million, nine hundred seventy-four thousand, six hundred thirty".