40999970 has 32 divisors (see below), whose sum is σ = 80956800. Its totient is φ = 14826240.

The previous prime is 40999969. The next prime is 40999993. The reversal of 40999970 is 7999904.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20954 + ... + 22826.

It is an arithmetic number, because the mean of its divisors is an integer number (2529900).

Almost surely, 2^40999970 is an apocalyptic number.

40999970 is a deficient number, since it is larger than the sum of its proper divisors (39956830).

40999970 is a wasteful number, since it uses less digits than its factorization.

40999970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 40999970 is about 6403.1218948260. The cubic root of 40999970 is about 344.8216399354.

The spelling of 40999970 in words is "forty million, nine hundred ninety-nine thousand, nine hundred seventy".