42394450 has 48 divisors (see below), whose sum is σ = 91690560. Its totient is φ = 14281920.

The previous prime is 42394421. The next prime is 42394459. The reversal of 42394450 is 5449324.

It is a happy number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (42394459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19624 + ... + 21676.

It is an arithmetic number, because the mean of its divisors is an integer number (1910220).

Almost surely, 2^42394450 is an apocalyptic number.

42394450 is an abundant number, since it is smaller than the sum of its proper divisors (49296110).

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

42394450 is a wasteful number, since it uses less digits than its factorization.

42394450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 42394450 is about 6511.1020572557. The cubic root of 42394450 is about 348.6874649675.

The spelling of 42394450 in words is "forty-two million, three hundred ninety-four thousand, four hundred fifty".