40202340 has 24 divisors (see below), whose sum is σ = 112566720. Its totient is φ = 10720608.

The previous prime is 40202333. The next prime is 40202353. The reversal of 40202340 is 4320204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334960 + ... + 335079.

It is an arithmetic number, because the mean of its divisors is an integer number (4690280).

Almost surely, 2^40202340 is an apocalyptic number.

It is an amenable number.

40202340 is an abundant number, since it is smaller than the sum of its proper divisors (72364380).

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

40202340 is a wasteful number, since it uses less digits than its factorization.

40202340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670051 (or 670049 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40202340 is about 6340.5315234608. The cubic root of 40202340 is about 342.5708806008.

Adding to 40202340 its reverse (4320204), we get a palindrome (44522544).

The spelling of 40202340 in words is "forty million, two hundred two thousand, three hundred forty".