40121002 has 8 divisors (see below), whose sum is σ = 60580512. Its totient is φ = 19927500.

The previous prime is 40120991. The next prime is 40121009. The reversal of 40121002 is 20012104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40121002.

It is not an unprimeable number, because it can be changed into a prime (40121009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 66124 + ... + 66727.

It is an arithmetic number, because the mean of its divisors is an integer number (7572564).

Almost surely, 2^40121002 is an apocalyptic number.

40121002 is a deficient number, since it is larger than the sum of its proper divisors (20459510).

40121002 is a wasteful number, since it uses less digits than its factorization.

40121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133004.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40121002 is about 6334.1141448509. The cubic root of 40121002 is about 342.3396930374.

Adding to 40121002 its reverse (20012104), we get a palindrome (60133106).

The spelling of 40121002 in words is "forty million, one hundred twenty-one thousand, two".