40202082 has 20 divisors (see below), whose sum is σ = 90082806. Its totient is φ = 13400640.

The previous prime is 40202051. The next prime is 40202083. The reversal of 40202082 is 28020204.

It can be written as a sum of positive squares in only one way, i.e., 24591681 + 15610401 = 4959^2 + 3951^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202083) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 123919 + ... + 124242.

Almost surely, 2^40202082 is an apocalyptic number.

40202082 is an abundant number, since it is smaller than the sum of its proper divisors (49880724).

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

40202082 is a wasteful number, since it uses less digits than its factorization.

40202082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248175 (or 248166 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 40202082 is about 6340.5111781307. The cubic root of 40202082 is about 342.5701477788.

Adding to 40202082 its reverse (28020204), we get a palindrome (68222286).

The spelling of 40202082 in words is "forty million, two hundred two thousand, eighty-two".