40454253 has 18 divisors (see below), whose sum is σ = 67974894. Its totient is φ = 23116464.

The previous prime is 40454251. The next prime is 40454261. The reversal of 40454253 is 35245404.

40454253 is a `hidden beast` number, since 404 + 5 + 4 + 253 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 233289 = 6342^2 + 483^2 .

It is not a de Polignac number, because 40454253 - 2¹ = 40454251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454251) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45426 + ... + 46307.

It is an arithmetic number, because the mean of its divisors is an integer number (3776383).

Almost surely, 2^40454253 is an apocalyptic number.

It is an amenable number.

40454253 is a deficient number, since it is larger than the sum of its proper divisors (27520641).

40454253 is a wasteful number, since it uses less digits than its factorization.

40454253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91753 (or 91743 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 40454253 is about 6360.3657913677. The cubic root of 40454253 is about 343.2849222177.

Adding to 40454253 its reverse (35245404), we get a palindrome (75699657).

The spelling of 40454253 in words is "forty million, four hundred fifty-four thousand, two hundred fifty-three".