40253472 has 144 divisors (see below), whose sum is σ = 134289792. Its totient is φ = 11197440.

The previous prime is 40253453. The next prime is 40253483. The reversal of 40253472 is 27435204.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82413 + ... + 82899.

It is an arithmetic number, because the mean of its divisors is an integer number (932568).

Almost surely, 2^40253472 is an apocalyptic number.

40253472 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40253472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67144896).

40253472 is an abundant number, since it is smaller than the sum of its proper divisors (94036320).

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

40253472 is a wasteful number, since it uses less digits than its factorization.

40253472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 40253472 is about 6344.5623962571. The cubic root of 40253472 is about 342.7160538532.

Adding to 40253472 its reverse (27435204), we get a palindrome (67688676).

The spelling of 40253472 in words is "forty million, two hundred fifty-three thousand, four hundred seventy-two".