242098990 has 16 divisors (see below), whose sum is σ = 498032352. Its totient is φ = 83005344.

The previous prime is 242098981. The next prime is 242098999. The reversal of 242098990 is 99890242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242098981) and next prime (242098999).

It is a super-2 number, since 2×242098990² = 117223841918040200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242098999) 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, 1729209 + ... + 1729348.

It is an arithmetic number, because the mean of its divisors is an integer number (31127022).

Almost surely, 2^242098990 is an apocalyptic number.

242098990 is an abundant number, since it is smaller than the sum of its proper divisors (255933362).

242098990 is a wasteful number, since it uses less digits than its factorization.

242098990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458571.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 242098990 is about 15559.5305199097. The cubic root of 242098990 is about 623.2529257208.

The spelling of 242098990 in words is "two hundred forty-two million, ninety-eight thousand, nine hundred ninety".