40061870 has 16 divisors (see below), whose sum is σ = 72787248. Its totient is φ = 15874560.

The previous prime is 40061869. The next prime is 40061891. The reversal of 40061870 is 7816004.

It is a congruent number.

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, 17651 + ... + 19790.

It is an arithmetic number, because the mean of its divisors is an integer number (4549203).

Almost surely, 2^40061870 is an apocalyptic number.

40061870 is a deficient number, since it is larger than the sum of its proper divisors (32725378).

40061870 is a wasteful number, since it uses less digits than its factorization.

40061870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37555.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 40061870 is about 6329.4446833826. Note that the first 3 decimals coincide. The cubic root of 40061870 is about 342.1714255218.

Adding to 40061870 its reverse (7816004), we get a palindrome (47877874).

The spelling of 40061870 in words is "forty million, sixty-one thousand, eight hundred seventy".