42903450 has 72 divisors (see below), whose sum is σ = 117069888. Its totient is φ = 11262240.

The previous prime is 42903439. The next prime is 42903451. The reversal of 42903450 is 5430924.

It is not an unprimeable number, because it can be changed into a prime (42903451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29439 + ... + 30861.

Almost surely, 2^42903450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42903450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58534944).

42903450 is an abundant number, since it is smaller than the sum of its proper divisors (74166438).

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

42903450 is a wasteful number, since it uses less digits than its factorization.

42903450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42903450 is about 6550.0725186825. The cubic root of 42903450 is about 350.0773978492.

The spelling of 42903450 in words is "forty-two million, nine hundred three thousand, four hundred fifty".