42031200402 has 32 divisors (see below), whose sum is σ = 96623452800. Its totient is φ = 13527282384.

The previous prime is 42031200377. The next prime is 42031200403. The reversal of 42031200402 is 20400213024.

42031200402 is a `hidden beast` number, since 420 + 3 + 1 + 200 + 40 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42031200403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13418358 + ... + 13421489.

It is an arithmetic number, because the mean of its divisors is an integer number (3019482900).

Almost surely, 2^42031200402 is an apocalyptic number.

42031200402 is an abundant number, since it is smaller than the sum of its proper divisors (54592252398).

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

42031200402 is a wasteful number, since it uses less digits than its factorization.

42031200402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26839887 (or 26839881 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 42031200402 its reverse (20400213024), we get a palindrome (62431413426).

The spelling of 42031200402 in words is "forty-two billion, thirty-one million, two hundred thousand, four hundred two".