242437890 has 16 divisors (see below), whose sum is σ = 581851008. Its totient is φ = 64650096.

The previous prime is 242437889. The next prime is 242437927. The reversal of 242437890 is 98734242.

242437890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×242437890² = 117552261015304200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040602 + ... + 4040661.

It is an arithmetic number, because the mean of its divisors is an integer number (36365688).

Almost surely, 2^242437890 is an apocalyptic number.

242437890 is an abundant number, since it is smaller than the sum of its proper divisors (339413118).

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

242437890 is a wasteful number, since it uses less digits than its factorization.

242437890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8081273.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 242437890 is about 15570.4171427743. The cubic root of 242437890 is about 623.5436083802.

The spelling of 242437890 in words is "two hundred forty-two million, four hundred thirty-seven thousand, eight hundred ninety".