401230444162642 has 4 divisors (see below), whose sum is σ = 601845666243966. Its totient is φ = 200615222081320.

The previous prime is 401230444162637. The next prime is 401230444162739. The reversal of 401230444162642 is 246261444032104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 342390207356521 + 58840236806121 = 18503789^2 + 7670739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100307611040659 + ... + 100307611040662.

Almost surely, 2^{401230444162642} is an apocalyptic number.

401230444162642 is a deficient number, since it is larger than the sum of its proper divisors (200615222081324).

401230444162642 is a wasteful number, since it uses less digits than its factorization.

401230444162642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200615222081323.

The product of its (nonzero) digits is 884736, while the sum is 43.

Adding to 401230444162642 its reverse (246261444032104), we get a palindrome (647491888194746).

The spelling of 401230444162642 in words is "four hundred one trillion, two hundred thirty billion, four hundred forty-four million, one hundred sixty-two thousand, six hundred forty-two".