400575007 has 8 divisors (see below), whose sum is σ = 466438176. Its totient is φ = 336871392.

The previous prime is 400575001. The next prime is 400575011. The reversal of 400575007 is 700575004.

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

It is not a de Polignac number, because 400575007 - 2¹⁵ = 400542239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400575001) 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, 539488 + ... + 540229.

It is an arithmetic number, because the mean of its divisors is an integer number (58304772).

Almost surely, 2^400575007 is an apocalyptic number.

400575007 is a deficient number, since it is larger than the sum of its proper divisors (65863169).

400575007 is a wasteful number, since it uses less digits than its factorization.

400575007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079777.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 400575007 is about 20014.3700125685. The cubic root of 400575007 is about 737.1591880044.

The spelling of 400575007 in words is "four hundred million, five hundred seventy-five thousand, seven".