242624398 has 4 divisors (see below), whose sum is σ = 363936600. Its totient is φ = 121312198.

The previous prime is 242624377. The next prime is 242624399. The reversal of 242624398 is 893426242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893426242 = 2 ⋅446713121.

It is a self number, because there is not a number n which added to its sum of digits gives 242624398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242624399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656098 + ... + 60656101.

It is an arithmetic number, because the mean of its divisors is an integer number (90984150).

Almost surely, 2^242624398 is an apocalyptic number.

242624398 is a deficient number, since it is larger than the sum of its proper divisors (121312202).

242624398 is a wasteful number, since it uses less digits than its factorization.

242624398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121312201.

The product of its digits is 165888, while the sum is 40.

The square root of 242624398 is about 15576.4051693579. The cubic root of 242624398 is about 623.7034652159.

The spelling of 242624398 in words is "two hundred forty-two million, six hundred twenty-four thousand, three hundred ninety-eight".