4242990 has 32 divisors (see below), whose sum is σ = 10536480. Its totient is φ = 1092224.

The previous prime is 4242989. The next prime is 4242991. The reversal of 4242990 is 992424.

It is an interprime number because it is at equal distance from previous prime (4242989) and next prime (4242991).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1569 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (329265).

Almost surely, 2^4242990 is an apocalyptic number.

4242990 is an abundant number, since it is smaller than the sum of its proper divisors (6293490).

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

4242990 is a wasteful number, since it uses less digits than its factorization.

4242990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4242990 is about 2059.8519364265. The cubic root of 4242990 is about 161.8914834911.

The spelling of 4242990 in words is "four million, two hundred forty-two thousand, nine hundred ninety".