40025158 has 4 divisors (see below), whose sum is σ = 60037740. Its totient is φ = 20012578.

The previous prime is 40025147. The next prime is 40025171. The reversal of 40025158 is 85152004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006288 + ... + 10006291.

It is an arithmetic number, because the mean of its divisors is an integer number (15009435).

Almost surely, 2^40025158 is an apocalyptic number.

40025158 is a deficient number, since it is larger than the sum of its proper divisors (20012582).

40025158 is a wasteful number, since it uses less digits than its factorization.

40025158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20012581.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 40025158 is about 6326.5439222375. The cubic root of 40025158 is about 342.0668736003.

The spelling of 40025158 in words is "forty million, twenty-five thousand, one hundred fifty-eight".