40671890 has 32 divisors (see below), whose sum is σ = 83911680. Its totient is φ = 13904064.

The previous prime is 40671887. The next prime is 40671899. The reversal of 40671890 is 9817604.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 40671890.

It is not an unprimeable number, because it can be changed into a prime (40671899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32924 + ... + 34136.

It is an arithmetic number, because the mean of its divisors is an integer number (2622240).

Almost surely, 2^40671890 is an apocalyptic number.

40671890 is an abundant number, since it is smaller than the sum of its proper divisors (43239790).

40671890 is a wasteful number, since it uses less digits than its factorization.

40671890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 40671890 is about 6377.4516854305. The cubic root of 40671890 is about 343.8994263856.

The spelling of 40671890 in words is "forty million, six hundred seventy-one thousand, eight hundred ninety".