242621379 has 128 divisors (see below), whose sum is σ = 495452160. Its totient is φ = 113270400.

The previous prime is 242621377. The next prime is 242621429. The reversal of 242621379 is 973126242.

242621379 is a `hidden beast` number, since 24 + 2 + 621 + 3 + 7 + 9 = 666.

It is not a de Polignac number, because 242621379 - 2¹ = 242621377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242621377) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1270174 + ... + 1270364.

It is an arithmetic number, because the mean of its divisors is an integer number (3870720).

Almost surely, 2^242621379 is an apocalyptic number.

242621379 is an abundant number, since it is smaller than the sum of its proper divisors (252830781).

242621379 is a wasteful number, since it uses less digits than its factorization.

242621379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 272 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 242621379 is about 15576.3082596615. The cubic root of 242621379 is about 623.7008782700.

The spelling of 242621379 in words is "two hundred forty-two million, six hundred twenty-one thousand, three hundred seventy-nine".