42043000 has 32 divisors (see below), whose sum is σ = 98382960. Its totient is φ = 16816800.

The previous prime is 42042961. The next prime is 42043003. The reversal of 42043000 is 34024.

It is a super-2 number, since 2×42043000² = 3535227698000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20022 + ... + 22021.

Almost surely, 2^42043000 is an apocalyptic number.

42043000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42043000 is an abundant number, since it is smaller than the sum of its proper divisors (56339960).

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

42043000 is a wasteful number, since it uses less digits than its factorization.

42043000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42064 (or 42050 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 42043000 is about 6484.0573717388. The cubic root of 42043000 is about 347.7212503342.

Adding to 42043000 its reverse (34024), we get a palindrome (42077024).

The spelling of 42043000 in words is "forty-two million, forty-three thousand".