401361626 has 4 divisors (see below), whose sum is σ = 602042442. Its totient is φ = 200680812.

The previous prime is 401361617. The next prime is 401361629. The reversal of 401361626 is 626163104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 238671601 + 162690025 = 15449^2 + 12755^2 .

It is a super-2 number, since 2×401361626² = 322182309650727752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401361629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100340405 + ... + 100340408.

Almost surely, 2^401361626 is an apocalyptic number.

401361626 is a deficient number, since it is larger than the sum of its proper divisors (200680816).

401361626 is a wasteful number, since it uses less digits than its factorization.

401361626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200680815.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 401361626 is about 20034.0117300555. The cubic root of 401361626 is about 737.6413983792.

The spelling of 401361626 in words is "four hundred one million, three hundred sixty-one thousand, six hundred twenty-six".