402621001042 has 16 divisors (see below), whose sum is σ = 665513069760. Its totient is φ = 181503563472.

The previous prime is 402621001009. The next prime is 402621001051. The reversal of 402621001042 is 240100126204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180061942 + ... + 180064177.

It is an arithmetic number, because the mean of its divisors is an integer number (41594566860).

Almost surely, 2^402621001042 is an apocalyptic number.

402621001042 is a deficient number, since it is larger than the sum of its proper divisors (262892068718).

402621001042 is a wasteful number, since it uses less digits than its factorization.

402621001042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360126177.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 402621001042 its reverse (240100126204), we get a palindrome (642721127246).

The spelling of 402621001042 in words is "four hundred two billion, six hundred twenty-one million, one thousand, forty-two".