420234736 has 10 divisors (see below), whose sum is σ = 814204832. Its totient is φ = 210117360.

The previous prime is 420234691. The next prime is 420234751. The reversal of 420234736 is 637432024.

It is a junction number, because it is equal to n+sod(n) for n = 420234698 and 420234707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132320 + ... + 13132351.

Almost surely, 2^420234736 is an apocalyptic number.

It is an amenable number.

420234736 is a deficient number, since it is larger than the sum of its proper divisors (393970096).

420234736 is a wasteful number, since it uses less digits than its factorization.

420234736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26264679 (or 26264673 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 420234736 is about 20499.6277039365. The cubic root of 420234736 is about 749.0267292421.

The spelling of 420234736 in words is "four hundred twenty million, two hundred thirty-four thousand, seven hundred thirty-six".