40890458 has 16 divisors (see below), whose sum is σ = 73146240. Its totient is φ = 16762416.

The previous prime is 40890449. The next prime is 40890511. The reversal of 40890458 is 85409804.

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, 63173 + ... + 63816.

It is an arithmetic number, because the mean of its divisors is an integer number (4571640).

Almost surely, 2^40890458 is an apocalyptic number.

40890458 is a deficient number, since it is larger than the sum of its proper divisors (32255782).

40890458 is a wasteful number, since it uses less digits than its factorization.

40890458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127021.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 40890458 is about 6394.5647232630. The cubic root of 40890458 is about 344.5143569577.

The spelling of 40890458 in words is "forty million, eight hundred ninety thousand, four hundred fifty-eight".