420234421394 has 64 divisors (see below), whose sum is σ = 702547292160. Its totient is φ = 187778609280.

The previous prime is 420234421333. The next prime is 420234421463. The reversal of 420234421394 is 493124432024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6043187 + ... + 6112329.

It is an arithmetic number, because the mean of its divisors is an integer number (10977301440).

Almost surely, 2^420234421394 is an apocalyptic number.

420234421394 is a deficient number, since it is larger than the sum of its proper divisors (282312870766).

420234421394 is a wasteful number, since it uses less digits than its factorization.

420234421394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69335.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 420234421394 in words is "four hundred twenty billion, two hundred thirty-four million, four hundred twenty-one thousand, three hundred ninety-four".