42452451 has 16 divisors (see below), whose sum is σ = 66592800. Its totient is φ = 26636544.

The previous prime is 42452437. The next prime is 42452453. The reversal of 42452451 is 15425424.

It is not a de Polignac number, because 42452451 - 2⁵ = 42452419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42452453) 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, 45786 + ... + 46703.

It is an arithmetic number, because the mean of its divisors is an integer number (4162050).

Almost surely, 2^42452451 is an apocalyptic number.

42452451 is a deficient number, since it is larger than the sum of its proper divisors (24140349).

42452451 is a wasteful number, since it uses less digits than its factorization.

42452451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92515 (or 92509 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 42452451 is about 6515.5545427845. The cubic root of 42452451 is about 348.8464087723.

Adding to 42452451 its reverse (15425424), we get a palindrome (57877875).

The spelling of 42452451 in words is "forty-two million, four hundred fifty-two thousand, four hundred fifty-one".