42412232421 has 32 divisors (see below), whose sum is σ = 71227632000. Its totient is φ = 24726155904.

The previous prime is 42412232419. The next prime is 42412232431. The reversal of 42412232421 is 12423221424.

It is a happy number.

42412232421 is a `hidden beast` number, since 4 + 2 + 4 + 1 + 2 + 232 + 421 = 666.

It is not a de Polignac number, because 42412232421 - 2¹ = 42412232419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42412232411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3173136 + ... + 3186473.

It is an arithmetic number, because the mean of its divisors is an integer number (2225863500).

Almost surely, 2^42412232421 is an apocalyptic number.

It is an amenable number.

42412232421 is a deficient number, since it is larger than the sum of its proper divisors (28815399579).

42412232421 is a wasteful number, since it uses less digits than its factorization.

42412232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359650 (or 6359644 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 42412232421 its reverse (12423221424), we get a palindrome (54835453845).

The spelling of 42412232421 in words is "forty-two billion, four hundred twelve million, two hundred thirty-two thousand, four hundred twenty-one".