401430452 has 12 divisors (see below), whose sum is σ = 743827140. Its totient is φ = 188908416.

The previous prime is 401430451. The next prime is 401430473. The reversal of 401430452 is 254034104.

It can be written as a sum of positive squares in 2 ways, for example, as 261339556 + 140090896 = 16166^2 + 11836^2 .

It is a super-2 number, since 2×401430452² = 322292815585848608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401430451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2951627 + ... + 2951762.

It is an arithmetic number, because the mean of its divisors is an integer number (61985595).

Almost surely, 2^401430452 is an apocalyptic number.

It is an amenable number.

401430452 is a deficient number, since it is larger than the sum of its proper divisors (342396688).

401430452 is a wasteful number, since it uses less digits than its factorization.

401430452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903410 (or 5903408 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 401430452 is about 20035.7293852757. The cubic root of 401430452 is about 737.6835598631.

Adding to 401430452 its reverse (254034104), we get a palindrome (655464556).

The spelling of 401430452 in words is "four hundred one million, four hundred thirty thousand, four hundred fifty-two".