400210952 has 8 divisors (see below), whose sum is σ = 750395550. Its totient is φ = 200105472.

The previous prime is 400210939. The next prime is 400210973. The reversal of 400210952 is 259012004.

It can be written as a sum of positive squares in only one way, i.e., 276689956 + 123520996 = 16634^2 + 11114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×400210952² = 320337612201492608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25013177 + ... + 25013192.

Almost surely, 2^400210952 is an apocalyptic number.

It is an amenable number.

400210952 is a deficient number, since it is larger than the sum of its proper divisors (350184598).

400210952 is a wasteful number, since it uses less digits than its factorization.

400210952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50026375 (or 50026371 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 400210952 is about 20005.2731048591. The cubic root of 400210952 is about 736.9358026005.

Adding to 400210952 its reverse (259012004), we get a palindrome (659222956).

The spelling of 400210952 in words is "four hundred million, two hundred ten thousand, nine hundred fifty-two".