42940524 has 24 divisors (see below), whose sum is σ = 109303488. Its totient is φ = 13012240.

The previous prime is 42940511. The next prime is 42940537. The reversal of 42940524 is 42504924.

42940524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42940511) and next prime (42940537).

It is a junction number, because it is equal to n+sod(n) for n = 42940491 and 42940500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162522 + ... + 162785.

It is an arithmetic number, because the mean of its divisors is an integer number (4554312).

Almost surely, 2^42940524 is an apocalyptic number.

42940524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42940524 is an abundant number, since it is smaller than the sum of its proper divisors (66362964).

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

42940524 is a wasteful number, since it uses less digits than its factorization.

42940524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325325 (or 325323 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42940524 is about 6552.9019525703. The cubic root of 42940524 is about 350.1782058480.

Subtracting from 42940524 its reverse (42504924), we obtain a square (435600 = 660²).

The spelling of 42940524 in words is "forty-two million, nine hundred forty thousand, five hundred twenty-four".