42154224420 has 576 divisors, whose sum is σ = 159847188480. Its totient is φ = 8094535680.

The previous prime is 42154224407. The next prime is 42154224433. The reversal of 42154224420 is 2442245124.

It is an interprime number because it is at equal distance from previous prime (42154224407) and next prime (42154224433).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 50972047 + ... + 50972873.

It is an arithmetic number, because the mean of its divisors is an integer number (277512480).

Almost surely, 2^42154224420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42154224420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79923594240).

42154224420 is an abundant number, since it is smaller than the sum of its proper divisors (117692964060).

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

42154224420 is a wasteful number, since it uses less digits than its factorization.

42154224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 42154224420 its reverse (2442245124), we get a palindrome (44596469544).

The spelling of 42154224420 in words is "forty-two billion, one hundred fifty-four million, two hundred twenty-four thousand, four hundred twenty".