42052390 has 24 divisors (see below), whose sum is σ = 80414352. Its totient is φ = 15830400.

The previous prime is 42052379. The next prime is 42052403. The reversal of 42052390 is 9325024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4386 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (3350598).

Almost surely, 2^42052390 is an apocalyptic number.

42052390 is a deficient number, since it is larger than the sum of its proper divisors (38361962).

42052390 is a wasteful number, since it uses less digits than its factorization.

42052390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14592 (or 14575 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 42052390 is about 6484.7814149746. The cubic root of 42052390 is about 347.7471354161.

The spelling of 42052390 in words is "forty-two million, fifty-two thousand, three hundred ninety".