242457798 has 32 divisors (see below), whose sum is σ = 537679872. Its totient is φ = 72266400.

The previous prime is 242457797. The next prime is 242457799. The reversal of 242457798 is 897754242.

It is an interprime number because it is at equal distance from previous prime (242457797) and next prime (242457799).

It is a super-2 number, since 2×242457798² = 117571567622017608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242457797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26086 + ... + 34137.

It is an arithmetic number, because the mean of its divisors is an integer number (16802496).

Almost surely, 2^242457798 is an apocalyptic number.

242457798 is an abundant number, since it is smaller than the sum of its proper divisors (295222074).

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

242457798 is a wasteful number, since it uses less digits than its factorization.

242457798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60300.

The product of its digits is 1128960, while the sum is 48.

The square root of 242457798 is about 15571.0564188818. The cubic root of 242457798 is about 623.5606755232.

The spelling of 242457798 in words is "two hundred forty-two million, four hundred fifty-seven thousand, seven hundred ninety-eight".