40659730 has 8 divisors (see below), whose sum is σ = 73187532. Its totient is φ = 16263888.

The previous prime is 40659727. The next prime is 40659743. The reversal of 40659730 is 3795604.

It can be written as a sum of positive squares in 2 ways, for example, as 36469521 + 4190209 = 6039^2 + 2047^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032977 + ... + 2032996.

Almost surely, 2^40659730 is an apocalyptic number.

40659730 is a deficient number, since it is larger than the sum of its proper divisors (32527802).

40659730 is a wasteful number, since it uses less digits than its factorization.

40659730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065980.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 40659730 is about 6376.4982553122. The cubic root of 40659730 is about 343.8651501827.

The spelling of 40659730 in words is "forty million, six hundred fifty-nine thousand, seven hundred thirty".