400440251154002 has 8 divisors (see below), whose sum is σ = 600664122281136. Its totient is φ = 200218877060292.

The previous prime is 400440251154001. The next prime is 400440251154043. The reversal of 400440251154002 is 200451152044004.

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 400440251154002.

It is not an unprimeable number, because it can be changed into a prime (400440251154001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623857388 + ... + 624498935.

It is an arithmetic number, because the mean of its divisors is an integer number (75083015285142).

Almost surely, 2^{400440251154002} is an apocalyptic number.

400440251154002 is a deficient number, since it is larger than the sum of its proper divisors (200223871127134).

400440251154002 is a wasteful number, since it uses less digits than its factorization.

400440251154002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248516712.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 400440251154002 in words is "four hundred trillion, four hundred forty billion, two hundred fifty-one million, one hundred fifty-four thousand, two".