42546040 has 48 divisors (see below), whose sum is σ = 97556040. Its totient is φ = 16699200.

The previous prime is 42546037. The next prime is 42546059. The reversal of 42546040 is 4064524.

It is a junction number, because it is equal to n+sod(n) for n = 42545996 and 42546014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201535 + ... + 201745.

Almost surely, 2^42546040 is an apocalyptic number.

42546040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42546040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48778020).

42546040 is an abundant number, since it is smaller than the sum of its proper divisors (55010000).

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

42546040 is a wasteful number, since it uses less digits than its factorization.

42546040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42546040 is about 6522.7325562221. The cubic root of 42546040 is about 349.1025716360.

The spelling of 42546040 in words is "forty-two million, five hundred forty-six thousand, forty".