400227247 has 12 divisors (see below), whose sum is σ = 472523160. Its totient is φ = 337928976.

The previous prime is 400227239. The next prime is 400227263. The reversal of 400227247 is 742722004.

It is not a de Polignac number, because 400227247 - 2³ = 400227239 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 (400227227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57672 + ... + 64237.

It is an arithmetic number, because the mean of its divisors is an integer number (39376930).

Almost surely, 2^400227247 is an apocalyptic number.

400227247 is a deficient number, since it is larger than the sum of its proper divisors (72295913).

400227247 is a wasteful number, since it uses less digits than its factorization.

400227247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121990 (or 121983 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 400227247 is about 20005.6803683354. The cubic root of 400227247 is about 736.9458041641.

The spelling of 400227247 in words is "four hundred million, two hundred twenty-seven thousand, two hundred forty-seven".