42433390 has 48 divisors (see below), whose sum is σ = 82604448. Its totient is φ = 15659072.

The previous prime is 42433381. The next prime is 42433397. The reversal of 42433390 is 9333424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42433397) 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, 719181 + ... + 719239.

It is an arithmetic number, because the mean of its divisors is an integer number (1720926).

Almost surely, 2^42433390 is an apocalyptic number.

42433390 is a deficient number, since it is larger than the sum of its proper divisors (40171058).

42433390 is a wasteful number, since it uses less digits than its factorization.

42433390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 42433390 is about 6514.0916481118. The cubic root of 42433390 is about 348.7941906893.

The spelling of 42433390 in words is "forty-two million, four hundred thirty-three thousand, three hundred ninety".