406372045642 has 8 divisors (see below), whose sum is σ = 609563452932. Its totient is φ = 203184228000.

The previous prime is 406372045637. The next prime is 406372045691. The reversal of 406372045642 is 246540273604.

It can be written as a sum of positive squares in 2 ways, for example, as 306308009401 + 100064036241 = 553451^2 + 316329^2 .

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

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, 593859 + ... + 1079542.

Almost surely, 2^406372045642 is an apocalyptic number.

406372045642 is a deficient number, since it is larger than the sum of its proper divisors (203191407290).

406372045642 is a wasteful number, since it uses less digits than its factorization.

406372045642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794824.

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 406372045642 in words is "four hundred six billion, three hundred seventy-two million, forty-five thousand, six hundred forty-two".