23742451 has 4 divisors (see below), whose sum is σ = 23913400. Its totient is φ = 23571504.

The previous prime is 23742449. The next prime is 23742461. The reversal of 23742451 is 15424732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23742451 - 2¹ = 23742449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23742401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85266 + ... + 85543.

It is an arithmetic number, because the mean of its divisors is an integer number (5978350).

Almost surely, 2^23742451 is an apocalyptic number.

23742451 is a deficient number, since it is larger than the sum of its proper divisors (170949).

23742451 is a wasteful number, since it uses less digits than its factorization.

23742451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170948.

The product of its digits is 6720, while the sum is 28.

The square root of 23742451 is about 4872.6225997916. The cubic root of 23742451 is about 287.4143956855.

The spelling of 23742451 in words is "twenty-three million, seven hundred forty-two thousand, four hundred fifty-one".