42103240 has 32 divisors (see below), whose sum is σ = 99720000. Its totient is φ = 15954624.

The previous prime is 42103231. The next prime is 42103249. The reversal of 42103240 is 4230124.

It is an interprime number because it is at equal distance from previous prime (42103231) and next prime (42103249).

It is not an unprimeable number, because it can be changed into a prime (42103249) 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, 26940 + ... + 28459.

It is an arithmetic number, because the mean of its divisors is an integer number (3116250).

Almost surely, 2^42103240 is an apocalyptic number.

42103240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42103240 is an abundant number, since it is smaller than the sum of its proper divisors (57616760).

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

42103240 is a wasteful number, since it uses less digits than its factorization.

42103240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55429 (or 55425 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42103240 is about 6488.7009485721. The cubic root of 42103240 is about 347.8872449254.

Adding to 42103240 its reverse (4230124), we get a palindrome (46333364).

The spelling of 42103240 in words is "forty-two million, one hundred three thousand, two hundred forty".