42554840 has 16 divisors (see below), whose sum is σ = 95748480. Its totient is φ = 17021920.

The previous prime is 42554833. The next prime is 42554857. The reversal of 42554840 is 4845524.

It is a junction number, because it is equal to n+sod(n) for n = 42554797 and 42554806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531896 + ... + 531975.

It is an arithmetic number, because the mean of its divisors is an integer number (5984280).

Almost surely, 2^42554840 is an apocalyptic number.

42554840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42554840 is an abundant number, since it is smaller than the sum of its proper divisors (53193640).

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

42554840 is a wasteful number, since it uses less digits than its factorization.

42554840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063882 (or 1063878 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 42554840 is about 6523.4070852584. The cubic root of 42554840 is about 349.1266388257.

The spelling of 42554840 in words is "forty-two million, five hundred fifty-four thousand, eight hundred forty".