40661262 has 24 divisors (see below), whose sum is σ = 88423920. Its totient is φ = 13503840.

The previous prime is 40661227. The next prime is 40661281. The reversal of 40661262 is 26216604.

It is a happy number.

40661262 is a `hidden beast` number, since 40 + 6 + 612 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1039 + ... + 9077.

It is an arithmetic number, because the mean of its divisors is an integer number (3684330).

Almost surely, 2^40661262 is an apocalyptic number.

40661262 is an abundant number, since it is smaller than the sum of its proper divisors (47762658).

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

40661262 is a wasteful number, since it uses less digits than its factorization.

40661262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328 (or 8325 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40661262 is about 6376.6183828108. The cubic root of 40661262 is about 343.8694689095.

Adding to 40661262 its reverse (26216604), we get a palindrome (66877866).

The spelling of 40661262 in words is "forty million, six hundred sixty-one thousand, two hundred sixty-two".