40254242 has 16 divisors (see below), whose sum is σ = 70310592. Its totient is φ = 16926000.

The previous prime is 40254229. The next prime is 40254259. The reversal of 40254242 is 24245204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26384 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (4394412).

Almost surely, 2^40254242 is an apocalyptic number.

40254242 is a deficient number, since it is larger than the sum of its proper divisors (30056350).

40254242 is a wasteful number, since it uses less digits than its factorization.

40254242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54313.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40254242 is about 6344.6230778510. The cubic root of 40254242 is about 342.7182390865.

Adding to 40254242 its reverse (24245204), we get a palindrome (64499446).

The spelling of 40254242 in words is "forty million, two hundred fifty-four thousand, two hundred forty-two".