404240007 has 8 divisors (see below), whose sum is σ = 539095680. Its totient is φ = 269438840.

The previous prime is 404240003. The next prime is 404240017. The reversal of 404240007 is 700042404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404240007 - 2² = 404240003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404240003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9094 + ... + 29852.

It is an arithmetic number, because the mean of its divisors is an integer number (67386960).

Almost surely, 2^404240007 is an apocalyptic number.

404240007 is a deficient number, since it is larger than the sum of its proper divisors (134855673).

404240007 is a wasteful number, since it uses less digits than its factorization.

404240007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27253.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 404240007 is about 20105.7207530593. The cubic root of 404240007 is about 739.4005414275.

The spelling of 404240007 in words is "four hundred four million, two hundred forty thousand, seven".