401320007 has 4 divisors (see below), whose sum is σ = 437803656. Its totient is φ = 364836360.

The previous prime is 401320001. The next prime is 401320021. The reversal of 401320007 is 700023104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 401320007 - 2¹² = 401315911 is a prime.

It is a super-2 number, since 2×401320007² = 322115496036960098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401320001) 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 in 3 ways as a sum of consecutive naturals, for example, 18241808 + ... + 18241829.

It is an arithmetic number, because the mean of its divisors is an integer number (109450914).

Almost surely, 2^401320007 is an apocalyptic number.

401320007 is a deficient number, since it is larger than the sum of its proper divisors (36483649).

401320007 is a wasteful number, since it uses less digits than its factorization.

401320007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36483648.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 401320007 is about 20032.9729945408. The cubic root of 401320007 is about 737.6159010417.

The spelling of 401320007 in words is "four hundred one million, three hundred twenty thousand, seven".