40185070 has 8 divisors (see below), whose sum is σ = 72333144. Its totient is φ = 16074024.

The previous prime is 40185049. The next prime is 40185073. The reversal of 40185070 is 7058104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40185070² = 3229679701809800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40185073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009244 + ... + 2009263.

It is an arithmetic number, because the mean of its divisors is an integer number (9041643).

Almost surely, 2^40185070 is an apocalyptic number.

40185070 is a deficient number, since it is larger than the sum of its proper divisors (32148074).

40185070 is a wasteful number, since it uses less digits than its factorization.

40185070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018514.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 40185070 is about 6339.1695039650. The cubic root of 40185070 is about 342.5218200530.

The spelling of 40185070 in words is "forty million, one hundred eighty-five thousand, seventy".