400116502 has 8 divisors (see below), whose sum is σ = 605486376. Its totient is φ = 198287712.

The previous prime is 400116481. The next prime is 400116511. The reversal of 400116502 is 205611004.

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 400116502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884988 + ... + 885439.

It is an arithmetic number, because the mean of its divisors is an integer number (75685797).

Almost surely, 2^400116502 is an apocalyptic number.

400116502 is a deficient number, since it is larger than the sum of its proper divisors (205369874).

400116502 is a wasteful number, since it uses less digits than its factorization.

400116502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770542.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 400116502 is about 20002.9123379572. The cubic root of 400116502 is about 736.8778256240.

Adding to 400116502 its reverse (205611004), we get a palindrome (605727506).

It can be divided in two parts, 4001 and 16502, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 400116502 in words is "four hundred million, one hundred sixteen thousand, five hundred two".