40525142 has 8 divisors (see below), whose sum is σ = 69471696. Its totient is φ = 17367912.

The previous prime is 40525109. The next prime is 40525181. The reversal of 40525142 is 24152504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447313 + ... + 1447340.

It is an arithmetic number, because the mean of its divisors is an integer number (8683962).

Almost surely, 2^40525142 is an apocalyptic number.

40525142 is a deficient number, since it is larger than the sum of its proper divisors (28946554).

40525142 is a wasteful number, since it uses less digits than its factorization.

40525142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894662.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 40525142 is about 6365.9360662828. The cubic root of 40525142 is about 343.4853207957.

Adding to 40525142 its reverse (24152504), we get a palindrome (64677646).

The spelling of 40525142 in words is "forty million, five hundred twenty-five thousand, one hundred forty-two".