42124445400402 has 24 divisors (see below), whose sum is σ = 91277886598236. Its totient is φ = 14040211815936.

The previous prime is 42124445400347. The next prime is 42124445400413. The reversal of 42124445400402 is 20400454442124.

42124445400402 is a `hidden beast` number, since 4 + 2 + 1 + 244 + 4 + 5 + 4 + 0 + 0 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40265992111401 + 1858453289001 = 6345549^2 + 1363251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105627463 + ... + 106025514.

Almost surely, 2^{42124445400402} is an apocalyptic number.

42124445400402 is an abundant number, since it is smaller than the sum of its proper divisors (49153441197834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42124445400402 is a wasteful number, since it uses less digits than its factorization.

42124445400402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211664042 (or 211664039 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 42124445400402 its reverse (20400454442124), we get a palindrome (62524899842526).

The spelling of 42124445400402 in words is "forty-two trillion, one hundred twenty-four billion, four hundred forty-five million, four hundred thousand, four hundred two".