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397067444 = 22157632273
BaseRepresentation
bin10111101010101…
…100010010110100
31000200011010010122
4113222230102310
51303122124234
6103222311112
712561006014
oct2752542264
91020133118
10397067444
11194152714
12b0b88498
1364355867
143aa3dc44
1524cd492e
hex17aac4b4

397067444 has 12 divisors (see below), whose sum is σ = 699295044. Its totient is φ = 197268864.

The previous prime is 397067441. The next prime is 397067459. The reversal of 397067444 is 444760793.

It can be written as a sum of positive squares in 2 ways, for example, as 131377444 + 265690000 = 11462^2 + 16300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397067395 and 397067404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397067441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315509 + ... + 316764.

It is an arithmetic number, because the mean of its divisors is an integer number (58274587).

Almost surely, 2397067444 is an apocalyptic number.

It is an amenable number.

397067444 is a deficient number, since it is larger than the sum of its proper divisors (302227600).

397067444 is a wasteful number, since it uses less digits than its factorization.

397067444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632434 (or 632432 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 397067444 is about 19926.5512319618. The cubic root of 397067444 is about 735.0012766263.

The spelling of 397067444 in words is "three hundred ninety-seven million, sixty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 157 314 628 632273 1264546 2529092 99266861 198533722 397067444