40662642 has 16 divisors (see below), whose sum is σ = 81482112. Its totient is φ = 13528080.

The previous prime is 40662637. The next prime is 40662647. The reversal of 40662642 is 24626604.

It is an interprime number because it is at equal distance from previous prime (40662637) and next prime (40662647).

It is a super-3 number, since 3×40662642³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40662647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3018 + ... + 9509.

It is an arithmetic number, because the mean of its divisors is an integer number (5092632).

Almost surely, 2^40662642 is an apocalyptic number.

40662642 is an abundant number, since it is smaller than the sum of its proper divisors (40819470).

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

40662642 is a wasteful number, since it uses less digits than its factorization.

40662642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13073.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 40662642 is about 6376.7265897167. The cubic root of 40662642 is about 343.8733590536.

The spelling of 40662642 in words is "forty million, six hundred sixty-two thousand, six hundred forty-two".