42103040 has 144 divisors (see below), whose sum is σ = 119304192. Its totient is φ = 13934592.

The previous prime is 42102979. The next prime is 42103043. The reversal of 42103040 is 4030124.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (42103043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331457 + ... + 331583.

Almost surely, 2^42103040 is an apocalyptic number.

42103040 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 42103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59652096).

42103040 is an abundant number, since it is smaller than the sum of its proper divisors (77201152).

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

42103040 is a wasteful number, since it uses less digits than its factorization.

42103040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42103040 is about 6488.6855371485. The cubic root of 42103040 is about 347.8866940766.

Adding to 42103040 its reverse (4030124), we get a palindrome (46133164).

The spelling of 42103040 in words is "forty-two million, one hundred three thousand, forty".