400070511 has 12 divisors (see below), whose sum is σ = 582995088. Its totient is φ = 264352704.

The previous prime is 400070501. The next prime is 400070521. The reversal of 400070511 is 115070004.

It is an interprime number because it is at equal distance from previous prime (400070501) and next prime (400070521).

It is a de Polignac number, because none of the positive numbers 2^k-400070511 is a prime.

It is a super-2 number, since 2×400070511² = 320112827543602242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400070501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195675 + ... + 197708.

It is an arithmetic number, because the mean of its divisors is an integer number (48582924).

Almost surely, 2^400070511 is an apocalyptic number.

400070511 is a deficient number, since it is larger than the sum of its proper divisors (182924577).

400070511 is a wasteful number, since it uses less digits than its factorization.

400070511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393502 (or 393499 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 400070511 is about 20001.7626973225. The cubic root of 400070511 is about 736.8495913086.

The spelling of 400070511 in words is "four hundred million, seventy thousand, five hundred eleven".