42254736 has 80 divisors (see below), whose sum is σ = 114516480. Its totient is φ = 13409280.

The previous prime is 42254717. The next prime is 42254743. The reversal of 42254736 is 63745224.

Its product of digits (40320) is a multiple of the sum of its prime factors (504).

It is a junction number, because it is equal to n+sod(n) for n = 42254697 and 42254706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108430 + ... + 108818.

It is an arithmetic number, because the mean of its divisors is an integer number (1431456).

Almost surely, 2^42254736 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 42254736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57258240).

42254736 is an abundant number, since it is smaller than the sum of its proper divisors (72261744).

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

42254736 is a wasteful number, since it uses less digits than its factorization.

42254736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 498 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 42254736 is about 6500.3642974836. The cubic root of 42254736 is about 348.3040017629.

The spelling of 42254736 in words is "forty-two million, two hundred fifty-four thousand, seven hundred thirty-six".