42030400402 has 8 divisors (see below), whose sum is σ = 63248320512. Its totient is φ = 20947626900.

The previous prime is 42030400369. The next prime is 42030400421. The reversal of 42030400402 is 20400403024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42030400402.

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, 33785874 + ... + 33787117.

It is an arithmetic number, because the mean of its divisors is an integer number (7906040064).

Almost surely, 2^42030400402 is an apocalyptic number.

42030400402 is a deficient number, since it is larger than the sum of its proper divisors (21217920110).

42030400402 is a wasteful number, since it uses less digits than its factorization.

42030400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67573304.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 42030400402 its reverse (20400403024), we get a palindrome (62430803426).

The spelling of 42030400402 in words is "forty-two billion, thirty million, four hundred thousand, four hundred two".