400495047 has 8 divisors (see below), whose sum is σ = 534124800. Its totient is φ = 266931000.

The previous prime is 400495031. The next prime is 400495049. The reversal of 400495047 is 740594004.

It is a happy number.

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

It is not a de Polignac number, because 400495047 - 2⁴ = 400495031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400494999 and 400495017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400495049) 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, 204 + ... + 28302.

It is an arithmetic number, because the mean of its divisors is an integer number (66765600).

Almost surely, 2^400495047 is an apocalyptic number.

400495047 is a deficient number, since it is larger than the sum of its proper divisors (133629753).

400495047 is a wasteful number, since it uses less digits than its factorization.

400495047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32853.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 400495047 is about 20012.3723481250. The cubic root of 400495047 is about 737.1101358751.

The spelling of 400495047 in words is "four hundred million, four hundred ninety-five thousand, forty-seven".