40253451 has 16 divisors (see below), whose sum is σ = 62592000. Its totient is φ = 23001384.

The previous prime is 40253443. The next prime is 40253453. The reversal of 40253451 is 15435204.

It is not a de Polignac number, because 40253451 - 2³ = 40253443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40253453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18531 + ... + 20588.

It is an arithmetic number, because the mean of its divisors is an integer number (3912000).

Almost surely, 2^40253451 is an apocalyptic number.

40253451 is a deficient number, since it is larger than the sum of its proper divisors (22338549).

40253451 is an equidigital number, since it uses as much as digits as its factorization.

40253451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39143 (or 39129 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40253451 is about 6344.5607412964. The cubic root of 40253451 is about 342.7159942556.

Adding to 40253451 its reverse (15435204), we get a palindrome (55688655).

It can be divided in two parts, 40253 and 451, that added together give a palindrome (40704).

The spelling of 40253451 in words is "forty million, two hundred fifty-three thousand, four hundred fifty-one".