400579471 has 4 divisors (see below), whose sum is σ = 410349744. Its totient is φ = 390809200.

The previous prime is 400579447. The next prime is 400579481. The reversal of 400579471 is 174975004.

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 400579471 - 2⁷ = 400579343 is a prime.

It is a super-3 number, since 3×400579471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400579471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400579441) 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, 4885075 + ... + 4885156.

It is an arithmetic number, because the mean of its divisors is an integer number (102587436).

Almost surely, 2^400579471 is an apocalyptic number.

400579471 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

400579471 is a deficient number, since it is larger than the sum of its proper divisors (9770273).

400579471 is an equidigital number, since it uses as much as digits as its factorization.

400579471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770272.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 400579471 is about 20014.4815321307. The cubic root of 400579471 is about 737.1619262900.

It can be divided in two parts, 4005794 and 71, that added together give a triangular number (4005865 = T₂₈₃₀).

The spelling of 400579471 in words is "four hundred million, five hundred seventy-nine thousand, four hundred seventy-one".