40109202 has 32 divisors (see below), whose sum is σ = 101865600. Its totient is φ = 11459664.

The previous prime is 40109197. The next prime is 40109207. The reversal of 40109202 is 20290104.

It is an interprime number because it is at equal distance from previous prime (40109197) and next prime (40109207).

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

It is not an unprimeable number, because it can be changed into a prime (40109207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52677 + ... + 53432.

It is an arithmetic number, because the mean of its divisors is an integer number (3183300).

Almost surely, 2^40109202 is an apocalyptic number.

40109202 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40109202 is an abundant number, since it is smaller than the sum of its proper divisors (61756398).

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

40109202 is a wasteful number, since it uses less digits than its factorization.

40109202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106127 (or 106121 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40109202 is about 6333.1826122417. The cubic root of 40109202 is about 342.3061278697.

Adding to 40109202 its reverse (20290104), we get a palindrome (60399306).

It can be divided in two parts, 40109 and 202, that multiplied together give a palindrome (8102018).

The spelling of 40109202 in words is "forty million, one hundred nine thousand, two hundred two".