40665130 has 32 divisors (see below), whose sum is σ = 84058560. Its totient is φ = 14008320.

The previous prime is 40665091. The next prime is 40665167. The reversal of 40665130 is 3156604.

It is a junction number, because it is equal to n+sod(n) for n = 40665095 and 40665104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7639 + ... + 11818.

It is an arithmetic number, because the mean of its divisors is an integer number (2626830).

Almost surely, 2^40665130 is an apocalyptic number.

40665130 is an abundant number, since it is smaller than the sum of its proper divisors (43393430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40665130 is a wasteful number, since it uses less digits than its factorization.

40665130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19494.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40665130 is about 6376.9216711514. The cubic root of 40665130 is about 343.8803723662.

It can be divided in two parts, 406 and 65130, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 40665130 in words is "forty million, six hundred sixty-five thousand, one hundred thirty".