40820662 has 4 divisors (see below), whose sum is σ = 61230996. Its totient is φ = 20410330.

The previous prime is 40820639. The next prime is 40820687. The reversal of 40820662 is 26602804.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40820662² = 3332652892236488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40820662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205164 + ... + 10205167.

It is an arithmetic number, because the mean of its divisors is an integer number (15307749).

Almost surely, 2^40820662 is an apocalyptic number.

40820662 is a deficient number, since it is larger than the sum of its proper divisors (20410334).

40820662 is a wasteful number, since it uses less digits than its factorization.

40820662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410333.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40820662 is about 6389.1049451390. The cubic root of 40820662 is about 344.3182279221.

The spelling of 40820662 in words is "forty million, eight hundred twenty thousand, six hundred sixty-two".