401007 has 4 divisors (see below), whose sum is σ = 534680. Its totient is φ = 267336.

The previous prime is 400997. The next prime is 401017. The reversal of 401007 is 700104.

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

It is an interprime number because it is at equal distance from previous prime (400997) and next prime (401017).

It is not a de Polignac number, because 401007 - 2⁶ = 400943 is a prime.

It is a super-2 number, since 2×401007² = 321613228098, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400983 and 401001.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401007.

It is not an unprimeable number, because it can be changed into a prime (401017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66832 + ... + 66837.

It is an arithmetic number, because the mean of its divisors is an integer number (133670).

2⁴⁰¹⁰⁰⁷ is an apocalyptic number.

401007 is a deficient number, since it is larger than the sum of its proper divisors (133673).

401007 is a wasteful number, since it uses less digits than its factorization.

401007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133672.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 401007 is about 633.2511350167. The cubic root of 401007 is about 73.7424084880.

The spelling of 401007 in words is "four hundred one thousand, seven", and thus it is an iban number.