42046990 has 16 divisors (see below), whose sum is σ = 78975648. Its totient is φ = 16087456.

The previous prime is 42046987. The next prime is 42046993. The reversal of 42046990 is 9964024.

It is an interprime number because it is at equal distance from previous prime (42046987) and next prime (42046993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42046993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91177 + ... + 91636.

It is an arithmetic number, because the mean of its divisors is an integer number (4935978).

Almost surely, 2^42046990 is an apocalyptic number.

42046990 is a deficient number, since it is larger than the sum of its proper divisors (36928658).

42046990 is a wasteful number, since it uses less digits than its factorization.

42046990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182843.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 42046990 is about 6484.3650421610. The cubic root of 42046990 is about 347.7322498974.

The spelling of 42046990 in words is "forty-two million, forty-six thousand, nine hundred ninety".