40458946 has 16 divisors (see below), whose sum is σ = 70100640. Its totient is φ = 17308480.

The previous prime is 40458919. The next prime is 40458953. The reversal of 40458946 is 64985404.

40458946 = 369² + 370² + ... + 555².

It is a super-2 number, since 2×40458946² = 3273852622861832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40458899 and 40458908.

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, 53716 + ... + 54463.

It is an arithmetic number, because the mean of its divisors is an integer number (4381290).

Almost surely, 2^40458946 is an apocalyptic number.

40458946 is a deficient number, since it is larger than the sum of its proper divisors (29641694).

40458946 is a wasteful number, since it uses less digits than its factorization.

40458946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108209.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40458946 is about 6360.7347059911. The cubic root of 40458946 is about 343.2981962554.

The spelling of 40458946 in words is "forty million, four hundred fifty-eight thousand, nine hundred forty-six".