40540958 has 4 divisors (see below), whose sum is σ = 60811440. Its totient is φ = 20270478.

The previous prime is 40540957. The next prime is 40540961. The reversal of 40540958 is 85904504.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40540957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10135238 + ... + 10135241.

It is an arithmetic number, because the mean of its divisors is an integer number (15202860).

Almost surely, 2^40540958 is an apocalyptic number.

40540958 is a deficient number, since it is larger than the sum of its proper divisors (20270482).

40540958 is a wasteful number, since it uses less digits than its factorization.

40540958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270481.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 40540958 is about 6367.1781818950. The cubic root of 40540958 is about 343.5299997035.

The spelling of 40540958 in words is "forty million, five hundred forty thousand, nine hundred fifty-eight".