20700430 has 8 divisors (see below), whose sum is σ = 37260792. Its totient is φ = 8280168.

The previous prime is 20700413. The next prime is 20700451. The reversal of 20700430 is 3400702.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035012 + ... + 1035031.

It is an arithmetic number, because the mean of its divisors is an integer number (4657599).

Almost surely, 2^20700430 is an apocalyptic number.

20700430 is a deficient number, since it is larger than the sum of its proper divisors (16560362).

20700430 is a wasteful number, since it uses less digits than its factorization.

20700430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070050.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 20700430 is about 4549.7725217861. The cubic root of 20700430 is about 274.5742392401.

The spelling of 20700430 in words is "twenty million, seven hundred thousand, four hundred thirty".