42450072 has 48 divisors (see below), whose sum is σ = 123455160. Its totient is φ = 12128256.

The previous prime is 42450059. The next prime is 42450077. The reversal of 42450072 is 27005424.

42450072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42450072² = 3604017225610368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42450077) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16873 + ... + 19224.

Almost surely, 2^42450072 is an apocalyptic number.

42450072 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42450072 is an abundant number, since it is smaller than the sum of its proper divisors (81005088).

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

42450072 is a wasteful number, since it uses less digits than its factorization.

42450072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36120 (or 36109 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42450072 is about 6515.3719771015. The cubic root of 42450072 is about 348.8398922965.

Adding to 42450072 its reverse (27005424), we get a palindrome (69455496).

The spelling of 42450072 in words is "forty-two million, four hundred fifty thousand, seventy-two".