2123240454 has 12 divisors (see below), whose sum is σ = 4600354356. Its totient is φ = 707746812.

The previous prime is 2123240453. The next prime is 2123240467. The reversal of 2123240454 is 4540423212.

2123240454 is a `hidden beast` number, since 21 + 232 + 404 + 5 + 4 = 666.

It is a super-2 number, since 2×2123240454² = 9016300051004252232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123240453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58978884 + ... + 58978919.

It is an arithmetic number, because the mean of its divisors is an integer number (383362863).

Almost surely, 2^2123240454 is an apocalyptic number.

2123240454 is an abundant number, since it is smaller than the sum of its proper divisors (2477113902).

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

2123240454 is a wasteful number, since it uses less digits than its factorization.

2123240454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117957811 (or 117957808 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2123240454 is about 46078.6333781721. The cubic root of 2123240454 is about 1285.2858512077.

Adding to 2123240454 its reverse (4540423212), we get a palindrome (6663663666).

The spelling of 2123240454 in words is "two billion, one hundred twenty-three million, two hundred forty thousand, four hundred fifty-four".