42450730 has 32 divisors (see below), whose sum is σ = 87584256. Its totient is φ = 14511744.

The previous prime is 42450713. The next prime is 42450743. The reversal of 42450730 is 3705424.

It is a junction number, because it is equal to n+sod(n) for n = 42450695 and 42450704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31327 + ... + 32653.

It is an arithmetic number, because the mean of its divisors is an integer number (2737008).

Almost surely, 2^42450730 is an apocalyptic number.

42450730 is an abundant number, since it is smaller than the sum of its proper divisors (45133526).

42450730 is a wasteful number, since it uses less digits than its factorization.

42450730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42450730 is about 6515.4224728716. The cubic root of 42450730 is about 348.8416946920.

The spelling of 42450730 in words is "forty-two million, four hundred fifty thousand, seven hundred thirty".